Add 4/9 and 80/70, Solve 4/9 + 1 10/70 as a fraction

Add 4/9 and 80/70

1^st number: 4/9, 2^nd number: 1 10/70

4/9 + 80/70 is 100/63.

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,
4/9 = 4 × 70/9 × 70 = 280/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630
Add the two like fractions:
280/630 + 720/630 = 280 + 720/630 = 1000/630
1000/630 simplified gives 100/63
So, 4/9 + 80/70 = 100/63
In mixed form: 137/63

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