Subtract 20/54 from 14/5, Solve 2 4/5

Subtract 20/54 from 14/5

1^st number: 2 4/5, 2^nd number: 20/54

14/5 - 20/54 is 328/135.

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

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 5 × 54 = 270,
14/5 = 14 × 54/5 × 54 = 756/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270
Subtract the two like fractions:
756/270 - 100/270 = 756 - 100/270 = 656/270
After reducing the fraction, the answer is 328/135
In mixed form: 258/135

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