Subtract 90/10 from 27/20
1st number: 1 7/20, 2nd number: 9 0/10
27/20 - 90/10 is -153/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
27/20 = 27 × 1/20 × 1 = 27/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
90/10 = 90 × 2/10 × 2 = 180/20 - Subtract the two like fractions:
27/20 - 180/20 = 27 - 180/20 = -153/20
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