Subtract 9/27 from 4/90
4/90 - 9/27 is -13/45.
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,
9/27 = 9 × 10/27 × 10 = 90/270 - Subtract the two like fractions:
12/270 - 90/270 = 12 - 90/270 = -78/270 - After reducing the fraction, the answer is -13/45
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