Subtract 3/15 from 7/2, Solve 3 1/2

Subtract 3/15 from 7/2

1^st number: 3 1/2, 2^nd number: 3/15

7/2 - 3/15 is 33/10.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 2 × 15 = 30,
7/2 = 7 × 15/2 × 15 = 105/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
3/15 = 3 × 2/15 × 2 = 6/30
Subtract the two like fractions:
105/30 - 6/30 = 105 - 6/30 = 99/30
After reducing the fraction, the answer is 33/10
In mixed form: 33/10

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