Subtract 6/9 from 45/20, Solve 2 5/20

Subtract 6/9 from 45/20

1^st number: 2 5/20, 2^nd number: 6/9

45/20 - 6/9 is 19/12.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180
Likewise, for the 2nd fraction, since 9 × 20 = 180,
6/9 = 6 × 20/9 × 20 = 120/180
Subtract the two like fractions:
405/180 - 120/180 = 405 - 120/180 = 285/180
After reducing the fraction, the answer is 19/12
In mixed form: 17/12

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