Add 2/40 and 21/56
2/40 + 21/56 is 17/40.
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,
2/40 = 2 × 7/40 × 7 = 14/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Add the two like fractions:
14/280 + 105/280 = 14 + 105/280 = 119/280 - 119/280 simplified gives 17/40
- So, 2/40 + 21/56 = 17/40
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