Subtract 72/40 from 10/28
1st number: 10/28, 2nd number: 1 32/40
10/28 - 72/40 is -101/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
10/28 = 10 × 10/28 × 10 = 100/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Subtract the two like fractions:
100/280 - 504/280 = 100 - 504/280 = -404/280 - After reducing the fraction, the answer is -101/70
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