Subtract 72/40 from 20/14
1st number: 1 6/14, 2nd number: 1 32/40
20/14 - 72/40 is -13/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
20/14 = 20 × 20/14 × 20 = 400/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Subtract the two like fractions:
400/280 - 504/280 = 400 - 504/280 = -104/280 - After reducing the fraction, the answer is -13/35
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