Subtract 90/25 from 20/12
1st number: 1 8/12, 2nd number: 3 15/25
20/12 - 90/25 is -29/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
20/12 = 20 × 25/12 × 25 = 500/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
90/25 = 90 × 12/25 × 12 = 1080/300 - Subtract the two like fractions:
500/300 - 1080/300 = 500 - 1080/300 = -580/300 - After reducing the fraction, the answer is -29/15
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