Subtract 49/20 from 40/54
1st number: 40/54, 2nd number: 2 9/20
40/54 - 49/20 is -923/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
40/54 = 40 × 10/54 × 10 = 400/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
49/20 = 49 × 27/20 × 27 = 1323/540 - Subtract the two like fractions:
400/540 - 1323/540 = 400 - 1323/540 = -923/540
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