Add 56/81 and 90/70
1st number: 56/81, 2nd number: 1 20/70
56/81 + 90/70 is 1121/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
56/81 = 56 × 70/81 × 70 = 3920/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
90/70 = 90 × 81/70 × 81 = 7290/5670 - Add the two like fractions:
3920/5670 + 7290/5670 = 3920 + 7290/5670 = 11210/5670 - 11210/5670 simplified gives 1121/567
- So, 56/81 + 90/70 = 1121/567
In mixed form: 1554/567
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