Subtract 81/49 from 27/40
1st number: 27/40, 2nd number: 1 32/49
27/40 - 81/49 is -1917/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
27/40 = 27 × 49/40 × 49 = 1323/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
81/49 = 81 × 40/49 × 40 = 3240/1960 - Subtract the two like fractions:
1323/1960 - 3240/1960 = 1323 - 3240/1960 = -1917/1960
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