Subtract 18/90 from 5/8
5/8 - 18/90 is 17/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
5/8 = 5 × 45/8 × 45 = 225/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
18/90 = 18 × 4/90 × 4 = 72/360 - Subtract the two like fractions:
225/360 - 72/360 = 225 - 72/360 = 153/360 - After reducing the fraction, the answer is 17/40
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