Subtract 28/27 from 27/30
1st number: 27/30, 2nd number: 1 1/27
27/30 - 28/27 is -37/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
27/30 = 27 × 9/30 × 9 = 243/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
28/27 = 28 × 10/27 × 10 = 280/270 - Subtract the two like fractions:
243/270 - 280/270 = 243 - 280/270 = -37/270
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