Subtract 20/54 from 70/84
70/84 - 20/54 is 25/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
70/84 = 70 × 9/84 × 9 = 630/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
20/54 = 20 × 14/54 × 14 = 280/756 - Subtract the two like fractions:
630/756 - 280/756 = 630 - 280/756 = 350/756 - After reducing the fraction, the answer is 25/54
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