Subtract 18/27 from 21/3
1st number: 7 0/3, 2nd number: 18/27
21/3 - 18/27 is 19/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 3 × 9 = 27,
21/3 = 21 × 9/3 × 9 = 189/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
18/27 = 18 × 1/27 × 1 = 18/27 - Subtract the two like fractions:
189/27 - 18/27 = 189 - 18/27 = 171/27 - After reducing the fraction, the answer is 19/3
- In mixed form: 61/3
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