Subtract 63/42 from 81/16
1st number: 5 1/16, 2nd number: 1 21/42
81/16 - 63/42 is 57/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
81/16 = 81 × 21/16 × 21 = 1701/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
63/42 = 63 × 8/42 × 8 = 504/336 - Subtract the two like fractions:
1701/336 - 504/336 = 1701 - 504/336 = 1197/336 - After reducing the fraction, the answer is 57/16
- In mixed form: 39/16
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