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adding and subtracting fractions

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by

Ally Smith

on 9 December 2013

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Transcript of adding and subtracting fractions

adding and subtracting fractions
Fractions
A fraction is a number divided into to parts of a whole.
Types of Fractions

Adding Fractions
Examples of adding fractions
There are 3 types of fractions. Proper, mixed numbers, and improper.
There are 3 simple steps to adding fractions.

Step 1:
Make sure the denominator (bottom numbers) are the same.

Step 2:
Add the numerators (top numbers) and put the answer over the denominator.

Step 3:
Simplify the fraction.
1/8 + 4/8
2/3 + 1/3
3/7 + 2/7
5/35 + 4/7
(1/7) + 4/7
1/3 + 7/9
(3/9) +7/9


= 5/8
= 3/3=1
= 5/7

= 5/7
= 1 1/9
Subtracting Fractions

There are 3 simples steps to subtracting fractions.

Step 1:
Make sure the denominator (bottom numbers) are the same.
Step 2:
Subtract the numerators (top numbers), put the answer over the denominator.
Step 3:
Simplify if needed.
Examples of subtracting fractions.
5/6 - 2/6
7/9 - 3/9
9/10 - 5/10
8/7 - 8/14 (16/14) - 8/14 8/9 -1/3 8/9 - (3/9)

= 3/6 =1/2
= 4/9
= 4/10
= 8/14
= 5/9

by Evan Smith
Full transcript