Subtract 30/7 from 48/15, Solve 3 3/15

Subtract 30/7 from 48/15

1^st number: 3 3/15, 2^nd number: 4 2/7

48/15 - 30/7 is -38/35.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 15 × 7 = 105,
48/15 = 48 × 7/15 × 7 = 336/105
Likewise, for the 2nd fraction, since 7 × 15 = 105,
30/7 = 30 × 15/7 × 15 = 450/105
Subtract the two like fractions:
336/105 - 450/105 = 336 - 450/105 = -114/105
After reducing the fraction, the answer is -38/35

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