Add 20/40 and 15/56
20/40 + 15/56 is 43/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Add the two like fractions:
140/280 + 75/280 = 140 + 75/280 = 215/280 - 215/280 simplified gives 43/56
- So, 20/40 + 15/56 = 43/56
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