Add 4/80 and 21/6, Solve 4/80 + 3 3/6 as a fraction

Add 4/80 and 21/6

1^st number: 4/80, 2^nd number: 3 3/6

4/80 + 21/6 is 71/20.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 6 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
4/80 = 4 × 3/80 × 3 = 12/240
Likewise, for the 2nd fraction, since 6 × 40 = 240,
21/6 = 21 × 40/6 × 40 = 840/240
Add the two like fractions:
12/240 + 840/240 = 12 + 840/240 = 852/240
852/240 simplified gives 71/20
So, 4/80 + 21/6 = 71/20
In mixed form: 311/20

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