Subtract 54/21 from 81/48
1st number: 1 33/48, 2nd number: 2 12/21
81/48 - 54/21 is -99/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
81/48 = 81 × 7/48 × 7 = 567/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
54/21 = 54 × 16/21 × 16 = 864/336 - Subtract the two like fractions:
567/336 - 864/336 = 567 - 864/336 = -297/336 - After reducing the fraction, the answer is -99/112
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