Add 63/72 and 21/8, Solve 63/72 + 2 5/8 as a fraction

Add 63/72 and 21/8

1^st number: 63/72, 2^nd number: 2 5/8

63/72 + 21/8 is 7/2.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 72 × 1 = 72,
63/72 = 63 × 1/72 × 1 = 63/72
Likewise, for the 2nd fraction, since 8 × 9 = 72,
21/8 = 21 × 9/8 × 9 = 189/72
Add the two like fractions:
63/72 + 189/72 = 63 + 189/72 = 252/72
252/72 simplified gives 7/2
So, 63/72 + 21/8 = 7/2
In mixed form: 31/2

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