Add 18/70 and 30/9
1st number: 18/70, 2nd number: 3 3/9
18/70 + 30/9 is 377/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
30/9 = 30 × 70/9 × 70 = 2100/630 - Add the two like fractions:
162/630 + 2100/630 = 162 + 2100/630 = 2262/630 - 2262/630 simplified gives 377/105
- So, 18/70 + 30/9 = 377/105
In mixed form: 362/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+30/9 18/70+60/9 18/70+30/18 54/70+30/9 18/70+90/9 18/70+30/27 90/70+30/9 18/70+30/45 18/70+30/63