Subtract 3/8 from 12/90
12/90 - 3/8 is -29/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
12/90 = 12 × 4/90 × 4 = 48/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
3/8 = 3 × 45/8 × 45 = 135/360 - Subtract the two like fractions:
48/360 - 135/360 = 48 - 135/360 = -87/360 - After reducing the fraction, the answer is -29/120
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