Add 30/18 and 21/14, Solve 1 12/18 + 1 7/14 as a fraction

Add 30/18 and 21/14

1^st number: 1 12/18, 2^nd number: 1 7/14

30/18 + 21/14 is 19/6.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
21/14 = 21 × 9/14 × 9 = 189/126
Add the two like fractions:
210/126 + 189/126 = 210 + 189/126 = 399/126
399/126 simplified gives 19/6
So, 30/18 + 21/14 = 19/6
In mixed form: 31/6

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