Subtract 10/56 from 30/15, Solve 2 0/15

Subtract 10/56 from 30/15

1^st number: 2 0/15, 2^nd number: 10/56

30/15 - 10/56 is 51/28.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 15 × 56 = 840,
30/15 = 30 × 56/15 × 56 = 1680/840
Likewise, for the 2nd fraction, since 56 × 15 = 840,
10/56 = 10 × 15/56 × 15 = 150/840
Subtract the two like fractions:
1680/840 - 150/840 = 1680 - 150/840 = 1530/840
After reducing the fraction, the answer is 51/28
In mixed form: 123/28

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