Add 12/15 and 72/63
1st number: 12/15, 2nd number: 1 9/63
12/15 + 72/63 is 68/35.
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,
12/15 = 12 × 21/15 × 21 = 252/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315 - Add the two like fractions:
252/315 + 360/315 = 252 + 360/315 = 612/315 - 612/315 simplified gives 68/35
- So, 12/15 + 72/63 = 68/35
In mixed form: 133/35
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