Subtract 9/90 from 40/2, Solve 20 0/2

Subtract 9/90 from 40/2

1^st number: 20 0/2, 2^nd number: 9/90

40/2 - 9/90 is 199/10.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 2 × 45 = 90,
40/2 = 40 × 45/2 × 45 = 1800/90
Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90
Subtract the two like fractions:
1800/90 - 9/90 = 1800 - 9/90 = 1791/90
After reducing the fraction, the answer is 199/10
In mixed form: 199/10

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