Add 8/3 and 90/70
1st number: 2 2/3, 2nd number: 1 20/70
8/3 + 90/70 is 83/21.
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,
8/3 = 8 × 70/3 × 70 = 560/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
90/70 = 90 × 3/70 × 3 = 270/210 - Add the two like fractions:
560/210 + 270/210 = 560 + 270/210 = 830/210 - 830/210 simplified gives 83/21
- So, 8/3 + 90/70 = 83/21
In mixed form: 320/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/3+90/70 8/6+90/70 24/3+90/70 8/9+90/70 40/3+90/70 8/15+90/70 56/3+90/70 8/21+90/70