Subtract 81/54 from 28/4
1st number: 7 0/4, 2nd number: 1 27/54
28/4 - 81/54 is 11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
28/4 = 28 × 27/4 × 27 = 756/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
81/54 = 81 × 2/54 × 2 = 162/108 - Subtract the two like fractions:
756/108 - 162/108 = 756 - 162/108 = 594/108 - After reducing the fraction, the answer is 11/2
- In mixed form: 51/2
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