Subtract 20/54 from 90/2, Solve 45 0/2

Subtract 20/54 from 90/2

1^st number: 45 0/2, 2^nd number: 20/54

90/2 - 20/54 is 1205/27.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 2 × 27 = 54,
90/2 = 90 × 27/2 × 27 = 2430/54
Likewise, for the 2nd fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54
Subtract the two like fractions:
2430/54 - 20/54 = 2430 - 20/54 = 2410/54
After reducing the fraction, the answer is 1205/27
In mixed form: 4417/27

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