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

Add 7/8 and 63/42

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

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

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

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

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