Subtract 54/63 from 81/4
1st number: 20 1/4, 2nd number: 54/63
81/4 - 54/63 is 543/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
81/4 = 81 × 63/4 × 63 = 5103/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
54/63 = 54 × 4/63 × 4 = 216/252 - Subtract the two like fractions:
5103/252 - 216/252 = 5103 - 216/252 = 4887/252 - After reducing the fraction, the answer is 543/28
- In mixed form: 1911/28
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