Subtract 72/40 from 9/14
1st number: 9/14, 2nd number: 1 32/40
9/14 - 72/40 is -81/70.
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,
9/14 = 9 × 20/14 × 20 = 180/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Subtract the two like fractions:
180/280 - 504/280 = 180 - 504/280 = -324/280 - After reducing the fraction, the answer is -81/70
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