Subtract 90/12 from 18/3
1st number: 6 0/3, 2nd number: 7 6/12
18/3 - 90/12 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
18/3 = 18 × 4/3 × 4 = 72/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
90/12 = 90 × 1/12 × 1 = 90/12 - Subtract the two like fractions:
72/12 - 90/12 = 72 - 90/12 = -18/12 - After reducing the fraction, the answer is -3/2
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