Add 30/9 and 45/70, Solve 3 3/9 + 45/70 as a fraction

Add 30/9 and 45/70

1^st number: 3 3/9, 2^nd number: 45/70

30/9 + 45/70 is 167/42.

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,
45/70 = 45 × 9/70 × 9 = 405/630
Add the two like fractions:
2100/630 + 405/630 = 2100 + 405/630 = 2505/630
2505/630 simplified gives 167/42
So, 30/9 + 45/70 = 167/42
In mixed form: 341/42

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