Subtract 72/27 from 21/5
1st number: 4 1/5, 2nd number: 2 18/27
21/5 - 72/27 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 5 × 27 = 135,
21/5 = 21 × 27/5 × 27 = 567/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
72/27 = 72 × 5/27 × 5 = 360/135 - Subtract the two like fractions:
567/135 - 360/135 = 567 - 360/135 = 207/135 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
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