Add 20/72 and 40/12, Solve 20/72 + 3 4/12 as a fraction

Add 20/72 and 40/12

1^st number: 20/72, 2^nd number: 3 4/12

20/72 + 40/12 is 65/18.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72
Likewise, for the 2nd fraction, since 12 × 6 = 72,
40/12 = 40 × 6/12 × 6 = 240/72
Add the two like fractions:
20/72 + 240/72 = 20 + 240/72 = 260/72
260/72 simplified gives 65/18
So, 20/72 + 40/12 = 65/18
In mixed form: 311/18

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