Add 63/80 and 21/5
1st number: 63/80, 2nd number: 4 1/5
63/80 + 21/5 is 399/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
63/80 = 63 × 1/80 × 1 = 63/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Add the two like fractions:
63/80 + 336/80 = 63 + 336/80 = 399/80 - So, 63/80 + 21/5 = 399/80
In mixed form: 479/80
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