Subtract 30/72 from 30/15, Solve 2 0/15

Subtract 30/72 from 30/15

1^st number: 2 0/15, 2^nd number: 30/72

30/15 - 30/72 is 19/12.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 15 × 24 = 360,
30/15 = 30 × 24/15 × 24 = 720/360
Likewise, for the 2nd fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360
Subtract the two like fractions:
720/360 - 150/360 = 720 - 150/360 = 570/360
After reducing the fraction, the answer is 19/12
In mixed form: 17/12

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