Subtract 8/4 from 72/40
1st number: 1 32/40, 2nd number: 2 0/4
72/40 - 8/4 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
72/40 = 72 × 1/40 × 1 = 72/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
8/4 = 8 × 10/4 × 10 = 80/40 - Subtract the two like fractions:
72/40 - 80/40 = 72 - 80/40 = -8/40 - After reducing the fraction, the answer is -1/5
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