Subtract 7/20 from 72/9, Solve 8 0/9

Subtract 7/20 from 72/9

1^st number: 8 0/9, 2^nd number: 7/20

72/9 - 7/20 is 153/20.

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

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 9 × 20 = 180,
72/9 = 72 × 20/9 × 20 = 1440/180
Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180
Subtract the two like fractions:
1440/180 - 63/180 = 1440 - 63/180 = 1377/180
After reducing the fraction, the answer is 153/20
In mixed form: 713/20

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