Add 21/4 and 14/80, Solve 5 1/4 + 14/80 as a fraction

Add 21/4 and 14/80

1^st number: 5 1/4, 2^nd number: 14/80

21/4 + 14/80 is 217/40.

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,
21/4 = 21 × 20/4 × 20 = 420/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
14/80 = 14 × 1/80 × 1 = 14/80
Add the two like fractions:
420/80 + 14/80 = 420 + 14/80 = 434/80
434/80 simplified gives 217/40
So, 21/4 + 14/80 = 217/40
In mixed form: 517/40

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