Subtract 81/20 from 70/16
1st number: 4 6/16, 2nd number: 4 1/20
70/16 - 81/20 is 13/40.
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,
81/20 = 81 × 4/20 × 4 = 324/80 - Subtract the two like fractions:
350/80 - 324/80 = 350 - 324/80 = 26/80 - After reducing the fraction, the answer is 13/40
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