Add 40/12 and 5/40, Solve 3 4/12 + 5/40 as a fraction

Add 40/12 and 5/40

1^st number: 3 4/12, 2^nd number: 5/40

40/12 + 5/40 is 83/24.

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,
40/12 = 40 × 10/12 × 10 = 400/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
5/40 = 5 × 3/40 × 3 = 15/120
Add the two like fractions:
400/120 + 15/120 = 400 + 15/120 = 415/120
415/120 simplified gives 83/24
So, 40/12 + 5/40 = 83/24
In mixed form: 311/24

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