Subtract 20/54 from 75/30
1st number: 2 15/30, 2nd number: 20/54
75/30 - 20/54 is 115/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
75/30 = 75 × 9/30 × 9 = 675/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270 - Subtract the two like fractions:
675/270 - 100/270 = 675 - 100/270 = 575/270 - After reducing the fraction, the answer is 115/54
- In mixed form: 27/54
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