Subtract 12/4 from 21/24
1st number: 21/24, 2nd number: 3 0/4
21/24 - 12/4 is -17/8.
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,
12/4 = 12 × 6/4 × 6 = 72/24 - Subtract the two like fractions:
21/24 - 72/24 = 21 - 72/24 = -51/24 - After reducing the fraction, the answer is -17/8
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