Add 10/12 and 21/72, Solve 10/12 + 21/72 as a fraction

Add 10/12 and 21/72

10/12 + 21/72 is 9/8.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
10/12 = 10 × 6/12 × 6 = 60/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72
Add the two like fractions:
60/72 + 21/72 = 60 + 21/72 = 81/72
81/72 simplified gives 9/8
So, 10/12 + 21/72 = 9/8
In mixed form: 11/8

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