Add 20/49 and 21/56
20/49 + 21/56 is 307/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
20/49 = 20 × 8/49 × 8 = 160/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
21/56 = 21 × 7/56 × 7 = 147/392 - Add the two like fractions:
160/392 + 147/392 = 160 + 147/392 = 307/392 - So, 20/49 + 21/56 = 307/392
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