Subtract 72/20 from 70/16
1st number: 4 6/16, 2nd number: 3 12/20
70/16 - 72/20 is 31/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
70/16 = 70 × 5/16 × 5 = 350/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
72/20 = 72 × 4/20 × 4 = 288/80 - Subtract the two like fractions:
350/80 - 288/80 = 350 - 288/80 = 62/80 - After reducing the fraction, the answer is 31/40
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