Subtract 15/42 from 18/2
1st number: 9 0/2, 2nd number: 15/42
18/2 - 15/42 is 121/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
18/2 = 18 × 21/2 × 21 = 378/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Subtract the two like fractions:
378/42 - 15/42 = 378 - 15/42 = 363/42 - After reducing the fraction, the answer is 121/14
- In mixed form: 89/14
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