Add 9/56 and 21/72
9/56 + 21/72 is 19/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
9/56 = 9 × 9/56 × 9 = 81/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504 - Add the two like fractions:
81/504 + 147/504 = 81 + 147/504 = 228/504 - 228/504 simplified gives 19/42
- So, 9/56 + 21/72 = 19/42
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