Subtract 21/18 from 24/27
1st number: 24/27, 2nd number: 1 3/18
24/27 - 21/18 is -5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
24/27 = 24 × 2/27 × 2 = 48/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
21/18 = 21 × 3/18 × 3 = 63/54 - Subtract the two like fractions:
48/54 - 63/54 = 48 - 63/54 = -15/54 - After reducing the fraction, the answer is -5/18
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