Add 21/20 and 4/16, Solve 1 1/20 + 4/16 as a fraction

Add 21/20 and 4/16

1^st number: 1 1/20, 2^nd number: 4/16

21/20 + 4/16 is 13/10.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 20 × 4 = 80,
21/20 = 21 × 4/20 × 4 = 84/80
Likewise, for the 2nd fraction, since 16 × 5 = 80,
4/16 = 4 × 5/16 × 5 = 20/80
Add the two like fractions:
84/80 + 20/80 = 84 + 20/80 = 104/80
104/80 simplified gives 13/10
So, 21/20 + 4/16 = 13/10
In mixed form: 13/10

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