Subtract 9/27 from 21/24
21/24 - 9/27 is 13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 24 × 9 = 216,
21/24 = 21 × 9/24 × 9 = 189/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
9/27 = 9 × 8/27 × 8 = 72/216 - Subtract the two like fractions:
189/216 - 72/216 = 189 - 72/216 = 117/216 - After reducing the fraction, the answer is 13/24
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