Add 40/12 and 90/27, Solve 3 4/12 + 3 9/27 as a fraction

Add 40/12 and 90/27

1^st number: 3 4/12, 2^nd number: 3 9/27

40/12 + 90/27 is 20/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
40/12 = 40 × 9/12 × 9 = 360/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
90/27 = 90 × 4/27 × 4 = 360/108
Add the two like fractions:
360/108 + 360/108 = 360 + 360/108 = 720/108
720/108 simplified gives 20/3
So, 40/12 + 90/27 = 20/3
In mixed form: 62/3

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