Add 18/9 and 18/70
1st number: 2 0/9, 2nd number: 18/70
18/9 + 18/70 is 79/35.
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,
18/70 = 18 × 9/70 × 9 = 162/630 - Add the two like fractions:
1260/630 + 162/630 = 1260 + 162/630 = 1422/630 - 1422/630 simplified gives 79/35
- So, 18/9 + 18/70 = 79/35
In mixed form: 29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+18/70 18/9+36/70 54/9+18/70 18/9+54/70 18/27+18/70 90/9+18/70 18/9+90/70 18/45+18/70 18/63+18/70