Add 18/14 and 40/12, Solve 1 4/14 + 3 4/12 as a fraction

Add 18/14 and 40/12

1^st number: 1 4/14, 2^nd number: 3 4/12

18/14 + 40/12 is 97/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 14 × 6 = 84,
18/14 = 18 × 6/14 × 6 = 108/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
40/12 = 40 × 7/12 × 7 = 280/84
Add the two like fractions:
108/84 + 280/84 = 108 + 280/84 = 388/84
388/84 simplified gives 97/21
So, 18/14 + 40/12 = 97/21
In mixed form: 413/21

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