Add 18/70 and 20/9, Solve 18/70 + 2 2/9 as a fraction

Add 18/70 and 20/9

1^st number: 18/70, 2^nd number: 2 2/9

18/70 + 20/9 is 781/315.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
20/9 = 20 × 70/9 × 70 = 1400/630
Add the two like fractions:
162/630 + 1400/630 = 162 + 1400/630 = 1562/630
1562/630 simplified gives 781/315
So, 18/70 + 20/9 = 781/315
In mixed form: 2151/315

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