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What is the method to write fractions into their lowest forms....for eg.... 10/15?

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By fraction I understand that the numerator and denominator are both integers. The way to simplify it by hand is to look for the greatest common divisor of the numerator and denominator and simplify by it.

For example 15/27=(3x5)/(3x9). The greatest common divisor of 15 and 27 is 3. Simplifying by 3, you get 5/9

Posted on May 22, 2011

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Posted on Jan 02, 2017

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How to solve franctions


Multiplying Fractions:
  1. Make sure you're working with two fractions.
  2. Multiply numerator x numerator, then multiply denominator x denominator.
Dividing Fractions:
  1. Make sure you're working with two fractions
  2. Flip the second fraction upside down.
  3. Change the division sign into a multiplication sign.
  4. Multiply top x top and bottom x bottom.
Converting Mixed Numbers into Improper Fractions:
  1. Convert mixed numbers into improper fractions.
  2. Take the whole (non-fraction) number and multiply it by the denominator.
  3. Add that answer to the numerator.
  4. Put that amount over the original denominator and you will have an improper fraction.
Method for Adding and Subtracting Fractions:
  1. Find the lowest common denominator (bottom number). For both adding and subtracting fractions, you'll start with the same process.
  2. Multiply fractions to match the lowest common denominator.
  3. Add or subtract the two numerators (top number) but NOT the denominators.

Mar 07, 2017 | Homework

3 Answers

Can you help me on this question?


This answer is correct. 4/12 divided by 2/2= 1/3
The reciprocal of 2/2 is 2/2
Then you multiply straight across and reduce to get 1/3

Mar 01, 2015 | Miscellaneous

1 Answer

How do you find the common denominator


The denominator is that number on the bottom of a fraction, so with 2 different fractions you want to get them in a form where they have the same denominator. Often you will be trying to find the lowest common denominator.

The usual procedure is to multiply one denominator into the top (numerator) of the other fraction. Then repeat this process with the denominator of the second fraction multiplied into the numerator of the first fraction. Then multiply the 2 denominators together and the result is the denominator now of both fractions.

Eg 2/3 and 5/7 become

14/21 and 15/21

Sometimes further simplification is possible where one fraction has a denominator which is a mltiple of the other. eg

2/3 and 5/6

In this case you only need to multiply on the first fraction

4/6 and 5/6

Aug 13, 2014 | SoftMath Algebrator - Algebra Homework...

1 Answer

Changing 80% to a fraction in the lowest term


You have to be careful. 80% is in fact 0.8.
Turn the calculator ON.
Enter the number 0.8
If your calculator is set to Write-View you will see the number displayed as a stacked fraction 4/5. If it is already in this form, press the key marked change with two arrows. The display should show a fraction.

If your calculator is set to LINE, you will see 4r5, where 4 is the numerator and 5 is the denominator.

The key marked change allows you to change displayed result from decimal to fraction and from fraction to decimal. When a number is converted to a fraction, it will always be a fraction reduced to its simplest terms.

Jan 14, 2012 | Sharp ELW535 Calculator

1 Answer

Formula for converting fractions into percentage.


Simplest method
  1. divide the top of the fraction by the bottom
  2. Then multiply the result by 100
  3. add a percent sign to the answer so people know it is a percentage (i.e. per 100)
  • e.g. 3/5 *100 = 0.6 * 100 = 60%

Alternative method Since percent means "per 100", you can try to convert the faction to the form ?/100
follow these steps:
  1. find a number that you can multiple the bottom of the fraction by to get 100
  2. multiple both top and bottom of the fraction by that number
  3. write down just the top number with the % sign added to the end
  • e.g. 3/5 as a percentage
  1. we can multiply 5 x 20 to get 100
  2. multiple top and bottom by 20 = (3*20)/(5*20) = 60/100 = 60%

I hope this helps and good luck! If you have more questions - ask away! Please take the time to rate this answer.
Don.

Sep 08, 2011 | Computers & Internet

1 Answer

Convert


Transforming 0.175 to fraction:
= 175/1,000
Reduce to lowest term (divide by 5 both the numerator and the denominator):
= 35/200
Reduce further by dividing both by 5:
= 7/40
This is the lowest terms now that it can't be reduced further.

The "Other" way round, Bottom number into ONE and multiply it by the Top. EG: 3/4 == 1 divided by 4 = 0.25, now we multiply, .25 by the Top number or in this case 3, that equals 0.75. 1/4 =0.25 x 3 = .75. 3/4 is the same as 0.75.

Feb 22, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Write the ratio as a fraction in lowest terms. 7


multiply each by 5 to get whole numbers. your ratio will be 35:26

Feb 18, 2010 | Core Learning Fractions Step-By-Step...

1 Answer

When I divide, I get a fraction. How do I get a decimal


If your calculator is configured to be in MthIO, the fraction that is displayed is always reduced to its simplest form. (The denominator is the smallest possible.)
If you are adding fractions, the result is also a fraction in its reduced form.
If you want to convert a fraction to a decimal number, press the [S<=>D] key.

To set MthIO: Press [SHIFT][MODE] (SetUp) and select [1:MthIO]
To set LineIO: Press [SHIFT][MODE](SetUp) and select [2:LineIO]
In LineIO, all results are expressed in decimal format.

Jan 26, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

61/82 as a fraction reduced to lowest fraction


Hello,

This fraction is already reduced to its simplest form because 61 is a prime number: a number that can only be divided by itself and by 1.

Hope it clarifies things.

Sep 07, 2009 | The Learning Company Achieve! Math &...

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