Subtract 28/27 from 9/20
1st number: 9/20, 2nd number: 1 1/27
9/20 - 28/27 is -317/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
9/20 = 9 × 27/20 × 27 = 243/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
28/27 = 28 × 20/27 × 20 = 560/540 - Subtract the two like fractions:
243/540 - 560/540 = 243 - 560/540 = -317/540
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