Add 70/20 and 90/56
1st number: 3 10/20, 2nd number: 1 34/56
70/20 + 90/56 is 143/28.
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,
70/20 = 70 × 14/20 × 14 = 980/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Add the two like fractions:
980/280 + 450/280 = 980 + 450/280 = 1430/280 - 1430/280 simplified gives 143/28
- So, 70/20 + 90/56 = 143/28
In mixed form: 53/28
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