Add 30/9 and 10/70, Solve 3 3/9 + 10/70 as a fraction

Add 30/9 and 10/70

1^st number: 3 3/9, 2^nd number: 10/70

30/9 + 10/70 is 73/21.

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,
30/9 = 30 × 70/9 × 70 = 2100/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630
Add the two like fractions:
2100/630 + 90/630 = 2100 + 90/630 = 2190/630
2190/630 simplified gives 73/21
So, 30/9 + 10/70 = 73/21
In mixed form: 310/21

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