Add 18/9 and 98/70
1st number: 2 0/9, 2nd number: 1 28/70
18/9 + 98/70 is 17/5.
Steps for adding fractions
- 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,
18/9 = 18 × 70/9 × 70 = 1260/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
98/70 = 98 × 9/70 × 9 = 882/630 - Add the two like fractions:
1260/630 + 882/630 = 1260 + 882/630 = 2142/630 - 2142/630 simplified gives 17/5
- So, 18/9 + 98/70 = 17/5
In mixed form: 32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+98/70 54/9+98/70 18/27+98/70 90/9+98/70 18/45+98/70 18/63+98/70