Add 6/9 and 20/7, Solve 6/9 + 2 6/7 as a fraction

Add 6/9 and 20/7

1^st number: 6/9, 2^nd number: 2 6/7

6/9 + 20/7 is 74/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 9 × 7 = 63,
6/9 = 6 × 7/9 × 7 = 42/63
Likewise, for the 2nd fraction, since 7 × 9 = 63,
20/7 = 20 × 9/7 × 9 = 180/63
Add the two like fractions:
42/63 + 180/63 = 42 + 180/63 = 222/63
222/63 simplified gives 74/21
So, 6/9 + 20/7 = 74/21
In mixed form: 311/21

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