Subtract 14/20 from 9/70
9/70 - 14/20 is -4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 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 20 × 7 = 140,
14/20 = 14 × 7/20 × 7 = 98/140 - Subtract the two like fractions:
18/140 - 98/140 = 18 - 98/140 = -80/140 - After reducing the fraction, the answer is -4/7
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