Subtract 6/20 from 8/28
8/28 - 6/20 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
8/28 = 8 × 5/28 × 5 = 40/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Subtract the two like fractions:
40/140 - 42/140 = 40 - 42/140 = -2/140 - After reducing the fraction, the answer is -1/70
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