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

Add 21/5 and 4/80

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

21/5 + 4/80 is 17/4.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80
Add the two like fractions:
336/80 + 4/80 = 336 + 4/80 = 340/80
340/80 simplified gives 17/4
So, 21/5 + 4/80 = 17/4
In mixed form: 41/4

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