Add 18/14 and 20/12, Solve 1 4/14 + 1 8/12 as a fraction

Add 18/14 and 20/12

1^st number: 1 4/14, 2^nd number: 1 8/12

18/14 + 20/12 is 62/21.

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,
20/12 = 20 × 7/12 × 7 = 140/84
Add the two like fractions:
108/84 + 140/84 = 108 + 140/84 = 248/84
248/84 simplified gives 62/21
So, 18/14 + 20/12 = 62/21
In mixed form: 220/21

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