Subtract 70/14 from 9/20
1st number: 9/20, 2nd number: 5 0/14
9/20 - 70/14 is -91/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
9/20 = 9 × 7/20 × 7 = 63/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
70/14 = 70 × 10/14 × 10 = 700/140 - Subtract the two like fractions:
63/140 - 700/140 = 63 - 700/140 = -637/140 - After reducing the fraction, the answer is -91/20
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