Add 98/9 and 30/70, Solve 10 8/9 + 30/70 as a fraction

Add 98/9 and 30/70

1^st number: 10 8/9, 2^nd number: 30/70

98/9 + 30/70 is 713/63.

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,
98/9 = 98 × 70/9 × 70 = 6860/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630
Add the two like fractions:
6860/630 + 270/630 = 6860 + 270/630 = 7130/630
7130/630 simplified gives 713/63
So, 98/9 + 30/70 = 713/63
In mixed form: 1120/63

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad