Subtract 20/27 from 21/3
1st number: 7 0/3, 2nd number: 20/27
21/3 - 20/27 is 169/27.
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,
20/27 = 20 × 1/27 × 1 = 20/27 - Subtract the two like fractions:
189/27 - 20/27 = 189 - 20/27 = 169/27 - In mixed form: 67/27
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