Add 42/49 and 54/56
42/49 + 54/56 is 51/28.
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,
42/49 = 42 × 8/49 × 8 = 336/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
54/56 = 54 × 7/56 × 7 = 378/392 - Add the two like fractions:
336/392 + 378/392 = 336 + 378/392 = 714/392 - 714/392 simplified gives 51/28
- So, 42/49 + 54/56 = 51/28
In mixed form: 123/28
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