fractions with like denominators. terminology like decimals, fractions represent parts of numbers. a...

Fractions With Like Fractions With Like DenominatorsDenominators

TerminologyTerminology

Like decimals, fractions represent parts of numbers. A fraction is usually a number that is between 0 and 1.

Numerator - number on top

Denominator - number on bottom

To add or subtract fractions To add or subtract fractions with like denominators:with like denominators:

• If the denominators are already the same, then you’re ready to add or subtract.

• Add or subtract the numerators. Keep the denominators the same.

• Simplify (reduce) the fraction, if possible.

• If you end up with an improper fraction, change it to a mixed number.

ExamplesExamples

1

5+

2

5=

35

This answer cannot be reduced any further.

914

514 =

414

The GCF of 4 and 14 is 2, so we divide by 2 to reduce.

÷ 2 = 27

89

+39 =

119

This is an improper fraction (the top is bigger than the bottom), so we want to change it to a mixed number.

To do this, divide the bottom into the top.

9 111

92

Answer:

1 29

Try SomeTry Some

712

512 =

47 + 1

7 =

815

+ 1215 =

16

57

1 13

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