Add 10/9 and 72/80, Solve 1 1/9 + 72/80 as a fraction

Add 10/9 and 72/80

1^st number: 1 1/9, 2^nd number: 72/80

10/9 + 72/80 is 181/90.

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,
10/9 = 10 × 80/9 × 80 = 800/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720
Add the two like fractions:
800/720 + 648/720 = 800 + 648/720 = 1448/720
1448/720 simplified gives 181/90
So, 10/9 + 72/80 = 181/90
In mixed form: 21/90

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