Subtract 9/63 from 81/28
1st number: 2 25/28, 2nd number: 9/63
81/28 - 9/63 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
9/63 = 9 × 4/63 × 4 = 36/252 - Subtract the two like fractions:
729/252 - 36/252 = 729 - 36/252 = 693/252 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
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