Add 36/18 and 30/70
1st number: 2 0/18, 2nd number: 30/70
36/18 + 30/70 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
36/18 = 36 × 35/18 × 35 = 1260/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Add the two like fractions:
1260/630 + 270/630 = 1260 + 270/630 = 1530/630 - 1530/630 simplified gives 17/7
- So, 36/18 + 30/70 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+30/70 36/18+60/70 36/18+90/70 36/54+30/70 36/90+30/70