Subtract 21/56 from 9/4
1st number: 2 1/4, 2nd number: 21/56
9/4 - 21/56 is 15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 4 × 14 = 56,
9/4 = 9 × 14/4 × 14 = 126/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Subtract the two like fractions:
126/56 - 21/56 = 126 - 21/56 = 105/56 - After reducing the fraction, the answer is 15/8
- In mixed form: 17/8
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