Subtract 15/54 from 40/30
1st number: 1 10/30, 2nd number: 15/54
40/30 - 15/54 is 19/18.
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,
40/30 = 40 × 9/30 × 9 = 360/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Subtract the two like fractions:
360/270 - 75/270 = 360 - 75/270 = 285/270 - After reducing the fraction, the answer is 19/18
- In mixed form: 11/18
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