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How do you rewrite a fraction pair with a common denominator?

Updated: 12/18/2022

Wiki User

∙ 11y ago

Best Answer

Example: 7/30 + 5/42
Find the LCD by factoring them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
2 x 3 x 5 x 7 = 210, the LCD
30 x 7 = 210
42 x 5 = 210
7/30 x 7/7 = 49/210
5/42 x 5/5 = 25/210
49/210 + 25/210 = 74/210
Simplify if necessary.
7/30 + 5/42 = 37/105

Wiki User

∙ 11y ago

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Find a common denominator for the pair of fractions. Then, write equivalent fractions with the common denominator?

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