Subtract 40/12 from 30/27
1st number: 1 3/27, 2nd number: 3 4/12
30/27 - 40/12 is -20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
30/27 = 30 × 4/27 × 4 = 120/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
40/12 = 40 × 9/12 × 9 = 360/108 - Subtract the two like fractions:
120/108 - 360/108 = 120 - 360/108 = -240/108 - After reducing the fraction, the answer is -20/9
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