Subtract 12/8 from 21/24
1st number: 21/24, 2nd number: 1 4/8
21/24 - 12/8 is -5/8.
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,
21/24 = 21 × 1/24 × 1 = 21/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
12/8 = 12 × 3/8 × 3 = 36/24 - Subtract the two like fractions:
21/24 - 36/24 = 21 - 36/24 = -15/24 - After reducing the fraction, the answer is -5/8
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