Subtract 5/28 from 9/70
9/70 - 5/28 is -1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
5/28 = 5 × 5/28 × 5 = 25/140 - Subtract the two like fractions:
18/140 - 25/140 = 18 - 25/140 = -7/140 - After reducing the fraction, the answer is -1/20
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