Subtract 72/20 from 8/4
1st number: 2 0/4, 2nd number: 3 12/20
8/4 - 72/20 is -8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
8/4 = 8 × 5/4 × 5 = 40/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
72/20 = 72 × 1/20 × 1 = 72/20 - Subtract the two like fractions:
40/20 - 72/20 = 40 - 72/20 = -32/20 - After reducing the fraction, the answer is -8/5
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