Subtract 21/8 from 45/24
1st number: 1 21/24, 2nd number: 2 5/8
45/24 - 21/8 is -3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
45/24 = 45 × 1/24 × 1 = 45/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Subtract the two like fractions:
45/24 - 63/24 = 45 - 63/24 = -18/24 - After reducing the fraction, the answer is -3/4
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