Subtract 9/4 from 21/24
1st number: 21/24, 2nd number: 2 1/4
21/24 - 9/4 is -11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 4 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Likewise, for the 2nd fraction, since 4 × 6 = 24,
9/4 = 9 × 6/4 × 6 = 54/24 - Subtract the two like fractions:
21/24 - 54/24 = 21 - 54/24 = -33/24 - After reducing the fraction, the answer is -11/8
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