Transcript Adding and Subtracting fractions with LIKE denominators

Adding and Subtracting
fractions with LIKE
denominators
1
To add with like denominators, we can follow three
simple steps:
1.
2.
3.
Add the numerator.
Keep the denominator the same.
If we need to….Simplify!!
4 + 2 = 4+2 =6
7
7
7
7
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4
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At a bake sale, 12 of a cherry pie and 12 of an apple pie are
sold. What is the total amount of pie sold?
4 + 7
12 12

In this problem we are asked to find the sum of

Our first step is to add the numerator.

Second step is to keep the denominator the same.
4 + 7 = 4 + 7 = 11
12
12
12 12

In this case the fraction is already simplified.
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Just like adding fractions with like denominators,
can also subtract with like denominators following
3 simple steps:
1.
2.
3.
we
Subtract the numerator.
Keep the denominator the same.
If we need to….Simplify!!
4 _ 2 = 4-2 = 2
7
7
7
7
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Assessment
1.
Greg, otherwise known as the “left-over-eater- upper,” is getting
ready to get his hands on the remains from the party. ¼ of the
apple pie and and ¼ of the cherry pie are left over. What are the
steps by which we can find the sum of the leftover pies that Greg
will eat?
2.
Add
2 + 4
9
9
3.
Add
3+ 3
4 4
4.
Subtract
7
8
1
8
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
To subtract fractions with like denominators, we first subtract the
numerator, and leave the denominator the same.

Always remember to simplify, when needed!
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