Add 7/3 and 20/70
1st number: 2 1/3, 2nd number: 20/70
7/3 + 20/70 is 55/21.
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,
7/3 = 7 × 70/3 × 70 = 490/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Add the two like fractions:
490/210 + 60/210 = 490 + 60/210 = 550/210 - 550/210 simplified gives 55/21
- So, 7/3 + 20/70 = 55/21
In mixed form: 213/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/3+20/70 7/3+40/70 7/6+20/70 21/3+20/70 7/3+60/70 7/9+20/70 35/3+20/70 7/15+20/70 49/3+20/70 7/21+20/70