Add 40/81 and 63/70
40/81 + 63/70 is 1129/810.
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,
40/81 = 40 × 70/81 × 70 = 2800/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
63/70 = 63 × 81/70 × 81 = 5103/5670 - Add the two like fractions:
2800/5670 + 5103/5670 = 2800 + 5103/5670 = 7903/5670 - 7903/5670 simplified gives 1129/810
- So, 40/81 + 63/70 = 1129/810
In mixed form: 1319/810
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Related: 80/81+63/70