Add 15/16 and 63/80
15/16 + 63/80 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
15/16 = 15 × 5/16 × 5 = 75/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
63/80 = 63 × 1/80 × 1 = 63/80 - Add the two like fractions:
75/80 + 63/80 = 75 + 63/80 = 138/80 - 138/80 simplified gives 69/40
- So, 15/16 + 63/80 = 69/40
In mixed form: 129/40
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