Add 15/56 and 20/70
15/56 + 20/70 is 31/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
20/70 = 20 × 4/70 × 4 = 80/280 - Add the two like fractions:
75/280 + 80/280 = 75 + 80/280 = 155/280 - 155/280 simplified gives 31/56
- So, 15/56 + 20/70 = 31/56
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