Subtract 72/5 from 90/18
1st number: 5 0/18, 2nd number: 14 2/5
90/18 - 72/5 is -47/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
90/18 = 90 × 5/18 × 5 = 450/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
72/5 = 72 × 18/5 × 18 = 1296/90 - Subtract the two like fractions:
450/90 - 1296/90 = 450 - 1296/90 = -846/90 - After reducing the fraction, the answer is -47/5
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