Add 12/18 and 84/70, Solve 12/18 + 1 14/70 as a fraction

Add 12/18 and 84/70

1^st number: 12/18, 2^nd number: 1 14/70

12/18 + 84/70 is 28/15.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
12/18 = 12 × 35/18 × 35 = 420/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630
Add the two like fractions:
420/630 + 756/630 = 420 + 756/630 = 1176/630
1176/630 simplified gives 28/15
So, 12/18 + 84/70 = 28/15
In mixed form: 113/15

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