Subtract 8/28 from 2/20
2/20 - 8/28 is -13/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
8/28 = 8 × 5/28 × 5 = 40/140 - Subtract the two like fractions:
14/140 - 40/140 = 14 - 40/140 = -26/140 - After reducing the fraction, the answer is -13/70
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