Add 63/42 and 7/8, Solve 1 21/42 + 7/8 as a fraction

Add 63/42 and 7/8

1^st number: 1 21/42, 2^nd number: 7/8

63/42 + 7/8 is 19/8.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
63/42 = 63 × 4/42 × 4 = 252/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
7/8 = 7 × 21/8 × 21 = 147/168
Add the two like fractions:
252/168 + 147/168 = 252 + 147/168 = 399/168
399/168 simplified gives 19/8
So, 63/42 + 7/8 = 19/8
In mixed form: 23/8

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