Subtract 42/54 from 20/9, Solve 2 2/9

Subtract 42/54 from 20/9

1^st number: 2 2/9, 2^nd number: 42/54

20/9 - 42/54 is 13/9.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 9 × 6 = 54,
20/9 = 20 × 6/9 × 6 = 120/54
Likewise, for the 2nd fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54
Subtract the two like fractions:
120/54 - 42/54 = 120 - 42/54 = 78/54
After reducing the fraction, the answer is 13/9
In mixed form: 14/9

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