Add 40/12 and 36/70, Solve 3 4/12 + 36/70 as a fraction

Add 40/12 and 36/70

1^st number: 3 4/12, 2^nd number: 36/70

40/12 + 36/70 is 404/105.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
40/12 = 40 × 35/12 × 35 = 1400/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
36/70 = 36 × 6/70 × 6 = 216/420
Add the two like fractions:
1400/420 + 216/420 = 1400 + 216/420 = 1616/420
1616/420 simplified gives 404/105
So, 40/12 + 36/70 = 404/105
In mixed form: 389/105

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