Add 8/20 and 7/56
8/20 + 7/56 is 21/40.
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,
8/20 = 8 × 14/20 × 14 = 112/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Add the two like fractions:
112/280 + 35/280 = 112 + 35/280 = 147/280 - 147/280 simplified gives 21/40
- So, 8/20 + 7/56 = 21/40
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