Add 30/70 and 84/9, Solve 30/70 + 9 3/9 as a fraction

Add 30/70 and 84/9

1^st number: 30/70, 2^nd number: 9 3/9

30/70 + 84/9 is 205/21.

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,
30/70 = 30 × 9/70 × 9 = 270/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
84/9 = 84 × 70/9 × 70 = 5880/630
Add the two like fractions:
270/630 + 5880/630 = 270 + 5880/630 = 6150/630
6150/630 simplified gives 205/21
So, 30/70 + 84/9 = 205/21
In mixed form: 916/21

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