Add 42/56 and 21/49
42/56 + 21/49 is 33/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 56 × 7 = 392,
42/56 = 42 × 7/56 × 7 = 294/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Add the two like fractions:
294/392 + 168/392 = 294 + 168/392 = 462/392 - 462/392 simplified gives 33/28
- So, 42/56 + 21/49 = 33/28
In mixed form: 15/28
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