Subtract 42/7 from 15/2
1st number: 7 1/2, 2nd number: 6 0/7
15/2 - 42/7 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
15/2 = 15 × 7/2 × 7 = 105/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
42/7 = 42 × 2/7 × 2 = 84/14 - Subtract the two like fractions:
105/14 - 84/14 = 105 - 84/14 = 21/14 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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