Add 90/45 and 9/80, Solve 2 0/45 + 9/80 as a fraction

Add 90/45 and 9/80

1^st number: 2 0/45, 2^nd number: 9/80

90/45 + 9/80 is 169/80.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 45 × 16 = 720,
90/45 = 90 × 16/45 × 16 = 1440/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720
Add the two like fractions:
1440/720 + 81/720 = 1440 + 81/720 = 1521/720
1521/720 simplified gives 169/80
So, 90/45 + 9/80 = 169/80
In mixed form: 29/80

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