Add 63/42 and 9/24, Solve 1 21/42 + 9/24 as a fraction

Add 63/42 and 9/24

1^st number: 1 21/42, 2^nd number: 9/24

63/42 + 9/24 is 15/8.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 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 24 × 7 = 168,
9/24 = 9 × 7/24 × 7 = 63/168
Add the two like fractions:
252/168 + 63/168 = 252 + 63/168 = 315/168
315/168 simplified gives 15/8
So, 63/42 + 9/24 = 15/8
In mixed form: 17/8

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