Subtract 18/54 from 42/5
1st number: 8 2/5, 2nd number: 18/54
42/5 - 18/54 is 121/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
42/5 = 42 × 54/5 × 54 = 2268/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
18/54 = 18 × 5/54 × 5 = 90/270 - Subtract the two like fractions:
2268/270 - 90/270 = 2268 - 90/270 = 2178/270 - After reducing the fraction, the answer is 121/15
- In mixed form: 81/15
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