Subtract 1/6 from 21/9
1st number: 2 3/9, 2nd number: 1/6
21/9 - 1/6 is 13/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 6 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
21/9 = 21 × 2/9 × 2 = 42/18 - Likewise, for the 2nd fraction, since 6 × 3 = 18,
1/6 = 1 × 3/6 × 3 = 3/18 - Subtract the two like fractions:
42/18 - 3/18 = 42 - 3/18 = 39/18 - After reducing the fraction, the answer is 13/6
- In mixed form: 21/6
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