Subtract 21/27 from 7/2
1st number: 3 1/2, 2nd number: 21/27
72 - 2127 is 4918.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
72 = 7 × 272 × 27 = 18954 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
2127 = 21 × 227 × 2 = 4254 - Subtract the two like fractions:
18954 - 4254 = 189 - 4254 = 14754 - After reducing the fraction, the answer is 4918
- In mixed form: 21318
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