Add 10/9 and 18/80, Solve 1 1/9 + 18/80 as a fraction

Add 10/9 and 18/80

1^st number: 1 1/9, 2^nd number: 18/80

10/9 + 18/80 is 481/360.

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,
18/80 = 18 × 9/80 × 9 = 162/720
Add the two like fractions:
800/720 + 162/720 = 800 + 162/720 = 962/720
962/720 simplified gives 481/360
So, 10/9 + 18/80 = 481/360
In mixed form: 1121/360

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