Subtract 4/5 from 30/54, Solve 30/54

Subtract 4/5 from 30/54

30/54 - 4/5 is -11/45.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 5 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 54 × 5 = 270,
30/54 = 30 × 5/54 × 5 = 150/270
Likewise, for the 2nd fraction, since 5 × 54 = 270,
4/5 = 4 × 54/5 × 54 = 216/270
Subtract the two like fractions:
150/270 - 216/270 = 150 - 216/270 = -66/270
After reducing the fraction, the answer is -11/45

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