Add 20/70 and 21/56
20/70 + 21/56 is 37/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
20/70 = 20 × 4/70 × 4 = 80/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Add the two like fractions:
80/280 + 105/280 = 80 + 105/280 = 185/280 - 185/280 simplified gives 37/56
- So, 20/70 + 21/56 = 37/56
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