Subtract 10/12 from 12/90
12/90 - 10/12 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
10/12 = 10 × 15/12 × 15 = 150/180 - Subtract the two like fractions:
24/180 - 150/180 = 24 - 150/180 = -126/180 - After reducing the fraction, the answer is -7/10
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