Add 3/80 and 63/18, Solve 3/80 + 3 9/18 as a fraction

Add 3/80 and 63/18

1^st number: 3/80, 2^nd number: 3 9/18

3/80 + 63/18 is 283/80.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720
Likewise, for the 2nd fraction, since 18 × 40 = 720,
63/18 = 63 × 40/18 × 40 = 2520/720
Add the two like fractions:
27/720 + 2520/720 = 27 + 2520/720 = 2547/720
2547/720 simplified gives 283/80
So, 3/80 + 63/18 = 283/80
In mixed form: 343/80

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