Subtract 15/54 from 30/10, Solve 3 0/10

Subtract 15/54 from 30/10

1^st number: 3 0/10, 2^nd number: 15/54

30/10 - 15/54 is 49/18.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 10 × 27 = 270,
30/10 = 30 × 27/10 × 27 = 810/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270
Subtract the two like fractions:
810/270 - 75/270 = 810 - 75/270 = 735/270
After reducing the fraction, the answer is 49/18
In mixed form: 213/18

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