Add 63/4 and 42/7, Solve 15 3/4 + 6 0/7 as a fraction

Add 63/4 and 42/7

1^st number: 15 3/4, 2^nd number: 6 0/7

63/4 + 42/7 is 87/4.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 4 × 7 = 28,
63/4 = 63 × 7/4 × 7 = 441/28
Likewise, for the 2nd fraction, since 7 × 4 = 28,
42/7 = 42 × 4/7 × 4 = 168/28
Add the two like fractions:
441/28 + 168/28 = 441 + 168/28 = 609/28
609/28 simplified gives 87/4
So, 63/4 + 42/7 = 87/4
In mixed form: 213/4

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