Subtract 27/10 from 27/40
1st number: 27/40, 2nd number: 2 7/10
27/40 - 27/10 is -81/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
27/40 = 27 × 1/40 × 1 = 27/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
27/10 = 27 × 4/10 × 4 = 108/40 - Subtract the two like fractions:
27/40 - 108/40 = 27 - 108/40 = -81/40
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