Add 45/3 and 30/70
1st number: 15 0/3, 2nd number: 30/70
45/3 + 30/70 is 108/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
45/3 = 45 × 70/3 × 70 = 3150/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210 - Add the two like fractions:
3150/210 + 90/210 = 3150 + 90/210 = 3240/210 - 3240/210 simplified gives 108/7
- So, 45/3 + 30/70 = 108/7
In mixed form: 153/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+30/70 45/3+60/70 45/6+30/70 45/3+90/70 45/9+30/70 45/15+30/70 45/21+30/70