Add 21/5 and 63/16
1st number: 4 1/5, 2nd number: 3 15/16
21/5 + 63/16 is 651/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Add the two like fractions:
336/80 + 315/80 = 336 + 315/80 = 651/80 - So, 21/5 + 63/16 = 651/80
In mixed form: 811/80
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