Subtract 21/27 from 18/6
1st number: 3 0/6, 2nd number: 21/27
18/6 - 21/27 is 20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 6 × 9 = 54,
18/6 = 18 × 9/6 × 9 = 162/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
21/27 = 21 × 2/27 × 2 = 42/54 - Subtract the two like fractions:
162/54 - 42/54 = 162 - 42/54 = 120/54 - After reducing the fraction, the answer is 20/9
- In mixed form: 22/9
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