Add 24/9 and 90/70, Solve 2 6/9 + 1 20/70 as a fraction

Add 24/9 and 90/70

1^st number: 2 6/9, 2^nd number: 1 20/70

24/9 + 90/70 is 83/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
24/9 = 24 × 70/9 × 70 = 1680/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630
Add the two like fractions:
1680/630 + 810/630 = 1680 + 810/630 = 2490/630
2490/630 simplified gives 83/21
So, 24/9 + 90/70 = 83/21
In mixed form: 320/21

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