Subtract 18/27 from 21/9
1st number: 2 3/9, 2nd number: 18/27
21/9 - 18/27 is 5/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 9 × 3 = 27,
21/9 = 21 × 3/9 × 3 = 63/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
18/27 = 18 × 1/27 × 1 = 18/27 - Subtract the two like fractions:
63/27 - 18/27 = 63 - 18/27 = 45/27 - After reducing the fraction, the answer is 5/3
- In mixed form: 12/3
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