Add 1/15 and 21/56
1/15 + 21/56 is 53/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
1/15 = 1 × 56/15 × 56 = 56/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
21/56 = 21 × 15/56 × 15 = 315/840 - Add the two like fractions:
56/840 + 315/840 = 56 + 315/840 = 371/840 - 371/840 simplified gives 53/120
- So, 1/15 + 21/56 = 53/120
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