Subtract 30/28 from 15/48, Solve 15/48

Subtract 30/28 from 15/48

1^st number: 15/48, 2^nd number: 1 2/28

15/48 - 30/28 is -85/112.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 28 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 48 × 7 = 336,
15/48 = 15 × 7/48 × 7 = 105/336
Likewise, for the 2nd fraction, since 28 × 12 = 336,
30/28 = 30 × 12/28 × 12 = 360/336
Subtract the two like fractions:
105/336 - 360/336 = 105 - 360/336 = -255/336
After reducing the fraction, the answer is -85/112

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