Add 56/7 and 40/81
1st number: 8 0/7, 2nd number: 40/81
56/7 + 40/81 is 688/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
56/7 = 56 × 81/7 × 81 = 4536/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
40/81 = 40 × 7/81 × 7 = 280/567 - Add the two like fractions:
4536/567 + 280/567 = 4536 + 280/567 = 4816/567 - 4816/567 simplified gives 688/81
- So, 56/7 + 40/81 = 688/81
In mixed form: 840/81
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