Subtract 15/20 from 40/27
1st number: 1 13/27, 2nd number: 15/20
40/27 - 15/20 is 79/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
40/27 = 40 × 20/27 × 20 = 800/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
15/20 = 15 × 27/20 × 27 = 405/540 - Subtract the two like fractions:
800/540 - 405/540 = 800 - 405/540 = 395/540 - After reducing the fraction, the answer is 79/108
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