Subtract 6/81 from 40/70
40/70 - 6/81 is 94/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
40/70 = 40 × 81/70 × 81 = 3240/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
6/81 = 6 × 70/81 × 70 = 420/5670 - Subtract the two like fractions:
3240/5670 - 420/5670 = 3240 - 420/5670 = 2820/5670 - After reducing the fraction, the answer is 94/189
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