Subtract 7/16 from 81/20
1st number: 4 1/20, 2nd number: 7/16
81/20 - 7/16 is 289/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
81/20 = 81 × 4/20 × 4 = 324/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
7/16 = 7 × 5/16 × 5 = 35/80 - Subtract the two like fractions:
324/80 - 35/80 = 324 - 35/80 = 289/80 - In mixed form: 349/80
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