Add 20/56 and 56/70
20/56 + 56/70 is 81/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
20/56 = 20 × 5/56 × 5 = 100/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
56/70 = 56 × 4/70 × 4 = 224/280 - Add the two like fractions:
100/280 + 224/280 = 100 + 224/280 = 324/280 - 324/280 simplified gives 81/70
- So, 20/56 + 56/70 = 81/70
In mixed form: 111/70
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