Add 7/81 and 40/70
7/81 + 40/70 is 373/567.
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,
7/81 = 7 × 70/81 × 70 = 490/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
40/70 = 40 × 81/70 × 81 = 3240/5670 - Add the two like fractions:
490/5670 + 3240/5670 = 490 + 3240/5670 = 3730/5670 - 3730/5670 simplified gives 373/567
- So, 7/81 + 40/70 = 373/567
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