Add 42/15 and 80/63
1st number: 2 12/15, 2nd number: 1 17/63
42/15 + 80/63 is 1282/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
42/15 = 42 × 21/15 × 21 = 882/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
80/63 = 80 × 5/63 × 5 = 400/315 - Add the two like fractions:
882/315 + 400/315 = 882 + 400/315 = 1282/315 - So, 42/15 + 80/63 = 1282/315
In mixed form: 422/315
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