Add 18/63 and 72/15
1st number: 18/63, 2nd number: 4 12/15
18/63 + 72/15 is 178/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
72/15 = 72 × 21/15 × 21 = 1512/315 - Add the two like fractions:
90/315 + 1512/315 = 90 + 1512/315 = 1602/315 - 1602/315 simplified gives 178/35
- So, 18/63 + 72/15 = 178/35
In mixed form: 53/35
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