Subtract 54/42 from 81/16
1st number: 5 1/16, 2nd number: 1 12/42
81/16 - 54/42 is 423/112.
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,
54/42 = 54 × 8/42 × 8 = 432/336 - Subtract the two like fractions:
1701/336 - 432/336 = 1701 - 432/336 = 1269/336 - After reducing the fraction, the answer is 423/112
- In mixed form: 387/112
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