Add 3/20 and 40/56
3/20 + 40/56 is 121/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
3/20 = 3 × 14/20 × 14 = 42/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
40/56 = 40 × 5/56 × 5 = 200/280 - Add the two like fractions:
42/280 + 200/280 = 42 + 200/280 = 242/280 - 242/280 simplified gives 121/140
- So, 3/20 + 40/56 = 121/140
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