Add 72/9 and 45/30, Solve 8 0/9 + 1 15/30 as a fraction

Add 72/9 and 45/30

1^st number: 8 0/9, 2^nd number: 1 15/30

72/9 + 45/30 is 19/2.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 9 × 10 = 90,
72/9 = 72 × 10/9 × 10 = 720/90
Likewise, for the 2nd fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90
Add the two like fractions:
720/90 + 135/90 = 720 + 135/90 = 855/90
855/90 simplified gives 19/2
So, 72/9 + 45/30 = 19/2
In mixed form: 91/2

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