Subtract 10/54 from 30/15, Solve 2 0/15

Subtract 10/54 from 30/15

1^st number: 2 0/15, 2^nd number: 10/54

30/15 - 10/54 is 49/27.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 15 × 18 = 270,
30/15 = 30 × 18/15 × 18 = 540/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
10/54 = 10 × 5/54 × 5 = 50/270
Subtract the two like fractions:
540/270 - 50/270 = 540 - 50/270 = 490/270
After reducing the fraction, the answer is 49/27
In mixed form: 122/27

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