Subtract 21/6 from 30/27
1st number: 1 3/27, 2nd number: 3 3/6
30/27 - 21/6 is -43/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
30/27 = 30 × 2/27 × 2 = 60/54 - Likewise, for the 2nd fraction, since 6 × 9 = 54,
21/6 = 21 × 9/6 × 9 = 189/54 - Subtract the two like fractions:
60/54 - 189/54 = 60 - 189/54 = -129/54 - After reducing the fraction, the answer is -43/18
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