Subtract 81/27 from 4/90
1st number: 4/90, 2nd number: 3 0/27
4/90 - 81/27 is -133/45.
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,
4/90 = 4 × 3/90 × 3 = 12/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
81/27 = 81 × 10/27 × 10 = 810/270 - Subtract the two like fractions:
12/270 - 810/270 = 12 - 810/270 = -798/270 - After reducing the fraction, the answer is -133/45
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