Subtract 90/27 from 20/24
1st number: 20/24, 2nd number: 3 9/27
20/24 - 90/27 is -5/2.
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,
20/24 = 20 × 9/24 × 9 = 180/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
90/27 = 90 × 8/27 × 8 = 720/216 - Subtract the two like fractions:
180/216 - 720/216 = 180 - 720/216 = -540/216 - After reducing the fraction, the answer is -5/2
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