Add 12/40 and 28/12, Solve 12/40 + 2 4/12 as a fraction

Add 12/40 and 28/12

1^st number: 12/40, 2^nd number: 2 4/12

12/40 + 28/12 is 79/30.

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

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120
Likewise, for the 2nd fraction, since 12 × 10 = 120,
28/12 = 28 × 10/12 × 10 = 280/120
Add the two like fractions:
36/120 + 280/120 = 36 + 280/120 = 316/120
316/120 simplified gives 79/30
So, 12/40 + 28/12 = 79/30
In mixed form: 219/30

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