Subtract 7/14 from 9/40
9/40 - 7/14 is -11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
7/14 = 7 × 20/14 × 20 = 140/280 - Subtract the two like fractions:
63/280 - 140/280 = 63 - 140/280 = -77/280 - After reducing the fraction, the answer is -11/40
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