Subtract 9/54 from 72/15
1st number: 4 12/15, 2nd number: 9/54
72/15 - 9/54 is 139/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
72/15 = 72 × 18/15 × 18 = 1296/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
9/54 = 9 × 5/54 × 5 = 45/270 - Subtract the two like fractions:
1296/270 - 45/270 = 1296 - 45/270 = 1251/270 - After reducing the fraction, the answer is 139/30
- In mixed form: 419/30
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