Add 5/70 and 18/9
1st number: 5/70, 2nd number: 2 0/9
5/70 + 18/9 is 29/14.
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,
5/70 = 5 × 9/70 × 9 = 45/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
18/9 = 18 × 70/9 × 70 = 1260/630 - Add the two like fractions:
45/630 + 1260/630 = 45 + 1260/630 = 1305/630 - 1305/630 simplified gives 29/14
- So, 5/70 + 18/9 = 29/14
In mixed form: 21/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+18/9 5/70+36/9 15/70+18/9 5/70+54/9 5/70+18/27 25/70+18/9 5/70+90/9 5/70+18/45 35/70+18/9 5/70+18/63