Subtract 30/27 from 15/90
1st number: 15/90, 2nd number: 1 3/27
15/90 - 30/27 is -17/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
15/90 = 15 × 3/90 × 3 = 45/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
30/27 = 30 × 10/27 × 10 = 300/270 - Subtract the two like fractions:
45/270 - 300/270 = 45 - 300/270 = -255/270 - After reducing the fraction, the answer is -17/18
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