Subtract 90/5 from 45/12
1st number: 3 9/12, 2nd number: 18 0/5
45/12 - 90/5 is -57/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
90/5 = 90 × 12/5 × 12 = 1080/60 - Subtract the two like fractions:
225/60 - 1080/60 = 225 - 1080/60 = -855/60 - After reducing the fraction, the answer is -57/4
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