Add 15/8 and 42/7, Solve 1 7/8 + 6 0/7 as a fraction

Add 15/8 and 42/7

1^st number: 1 7/8, 2^nd number: 6 0/7

15/8 + 42/7 is 63/8.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 8 × 7 = 56,
15/8 = 15 × 7/8 × 7 = 105/56
Likewise, for the 2nd fraction, since 7 × 8 = 56,
42/7 = 42 × 8/7 × 8 = 336/56
Add the two like fractions:
105/56 + 336/56 = 105 + 336/56 = 441/56
441/56 simplified gives 63/8
So, 15/8 + 42/7 = 63/8
In mixed form: 77/8

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