Subtract 90/27 from 60/30
1st number: 2 0/30, 2nd number: 3 9/27
60/30 - 90/27 is -4/3.
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,
60/30 = 60 × 9/30 × 9 = 540/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270 - Subtract the two like fractions:
540/270 - 900/270 = 540 - 900/270 = -360/270 - After reducing the fraction, the answer is -4/3
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