Subtract 90/25 from 18/12
1st number: 1 6/12, 2nd number: 3 15/25
18/12 - 90/25 is -21/10.
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,
18/12 = 18 × 25/12 × 25 = 450/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
90/25 = 90 × 12/25 × 12 = 1080/300 - Subtract the two like fractions:
450/300 - 1080/300 = 450 - 1080/300 = -630/300 - After reducing the fraction, the answer is -21/10
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