Add 21/72 and 7/56
21/72 + 7/56 is 5/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
7/56 = 7 × 9/56 × 9 = 63/504 - Add the two like fractions:
147/504 + 63/504 = 147 + 63/504 = 210/504 - 210/504 simplified gives 5/12
- So, 21/72 + 7/56 = 5/12
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