Add 5/4 and 4/80, Solve 1 1/4 + 4/80 as a fraction

Add 5/4 and 4/80

1^st number: 1 1/4, 2^nd number: 4/80

5/4 + 4/80 is 13/10.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 4 × 20 = 80,
5/4 = 5 × 20/4 × 20 = 100/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80
Add the two like fractions:
100/80 + 4/80 = 100 + 4/80 = 104/80
104/80 simplified gives 13/10
So, 5/4 + 4/80 = 13/10
In mixed form: 13/10

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