Add 3/12 and 80/40, Solve 3/12 + 2 0/40 as a fraction

Add 3/12 and 80/40

1^st number: 3/12, 2^nd number: 2 0/40

3/12 + 80/40 is 9/4.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
3/12 = 3 × 10/12 × 10 = 30/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
80/40 = 80 × 3/40 × 3 = 240/120
Add the two like fractions:
30/120 + 240/120 = 30 + 240/120 = 270/120
270/120 simplified gives 9/4
So, 3/12 + 80/40 = 9/4
In mixed form: 21/4

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