Subtract 30/28 from 36/12, Solve 3 0/12

Subtract 30/28 from 36/12

1^st number: 3 0/12, 2^nd number: 1 2/28

36/12 - 30/28 is 27/14.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
36/12 = 36 × 7/12 × 7 = 252/84
Likewise, for the 2nd fraction, since 28 × 3 = 84,
30/28 = 30 × 3/28 × 3 = 90/84
Subtract the two like fractions:
252/84 - 90/84 = 252 - 90/84 = 162/84
After reducing the fraction, the answer is 27/14
In mixed form: 113/14

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