Subtract 18/15 from 54/8
1st number: 6 6/8, 2nd number: 1 3/15
54/8 - 18/15 is 111/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
54/8 = 54 × 15/8 × 15 = 810/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
18/15 = 18 × 8/15 × 8 = 144/120 - Subtract the two like fractions:
810/120 - 144/120 = 810 - 144/120 = 666/120 - After reducing the fraction, the answer is 111/20
- In mixed form: 511/20
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