Subtract 9/20 from 81/16
1st number: 5 1/16, 2nd number: 9/20
81/16 - 9/20 is 369/80.
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,
81/16 = 81 × 5/16 × 5 = 405/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
9/20 = 9 × 4/20 × 4 = 36/80 - Subtract the two like fractions:
405/80 - 36/80 = 405 - 36/80 = 369/80 - In mixed form: 449/80
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