Subtract 9/8 from 54/18
1st number: 3 0/18, 2nd number: 1 1/8
54/18 - 9/8 is 15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
54/18 = 54 × 4/18 × 4 = 216/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
9/8 = 9 × 9/8 × 9 = 81/72 - Subtract the two like fractions:
216/72 - 81/72 = 216 - 81/72 = 135/72 - After reducing the fraction, the answer is 15/8
- In mixed form: 17/8
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