Add 72/15 and 42/63
1st number: 4 12/15, 2nd number: 42/63
72/15 + 42/63 is 82/15.
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,
72/15 = 72 × 21/15 × 21 = 1512/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
42/63 = 42 × 5/63 × 5 = 210/315 - Add the two like fractions:
1512/315 + 210/315 = 1512 + 210/315 = 1722/315 - 1722/315 simplified gives 82/15
- So, 72/15 + 42/63 = 82/15
In mixed form: 57/15
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