Subtract 40/70 from 56/84
56/84 - 40/70 is 2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
56/84 = 56 × 5/84 × 5 = 280/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
40/70 = 40 × 6/70 × 6 = 240/420 - Subtract the two like fractions:
280/420 - 240/420 = 280 - 240/420 = 40/420 - After reducing the fraction, the answer is 2/21
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