Subtract 90/27 from 40/30
1st number: 1 10/30, 2nd number: 3 9/27
40/30 - 90/27 is -2/1.
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,
40/30 = 40 × 9/30 × 9 = 360/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270 - Subtract the two like fractions:
360/270 - 900/270 = 360 - 900/270 = -540/270 - After reducing the fraction, the answer is -2/1
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