Add 63/72 and 21/16
1st number: 63/72, 2nd number: 1 5/16
63/72 + 21/16 is 35/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
63/72 = 63 × 2/72 × 2 = 126/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Add the two like fractions:
126/144 + 189/144 = 126 + 189/144 = 315/144 - 315/144 simplified gives 35/16
- So, 63/72 + 21/16 = 35/16
In mixed form: 23/16
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