Subtract 9/80 from 18/9, Solve 2 0/9

Subtract 9/80 from 18/9

1^st number: 2 0/9, 2^nd number: 9/80

18/9 - 9/80 is 151/80.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 9 × 80 = 720,
18/9 = 18 × 80/9 × 80 = 1440/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720
Subtract the two like fractions:
1440/720 - 81/720 = 1440 - 81/720 = 1359/720
After reducing the fraction, the answer is 151/80
In mixed form: 171/80

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