Subtract 28/40 from 72/9, Solve 8 0/9

Subtract 28/40 from 72/9

1^st number: 8 0/9, 2^nd number: 28/40

72/9 - 28/40 is 73/10.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 9 × 40 = 360,
72/9 = 72 × 40/9 × 40 = 2880/360
Likewise, for the 2nd fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360
Subtract the two like fractions:
2880/360 - 252/360 = 2880 - 252/360 = 2628/360
After reducing the fraction, the answer is 73/10
In mixed form: 73/10

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