Subtract 18/24 from 7/90
7/90 - 18/24 is -121/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
18/24 = 18 × 15/24 × 15 = 270/360 - Subtract the two like fractions:
28/360 - 270/360 = 28 - 270/360 = -242/360 - After reducing the fraction, the answer is -121/180
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