Subtract 20/28 from 4/6
4/6 - 20/28 is -1/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
4/6 = 4 × 14/6 × 14 = 56/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Subtract the two like fractions:
56/84 - 60/84 = 56 - 60/84 = -4/84 - After reducing the fraction, the answer is -1/21
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