Add 20/70 and 10/3
1st number: 20/70, 2nd number: 3 1/3
20/70 + 10/3 is 76/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
10/3 = 10 × 70/3 × 70 = 700/210 - Add the two like fractions:
60/210 + 700/210 = 60 + 700/210 = 760/210 - 760/210 simplified gives 76/21
- So, 20/70 + 10/3 = 76/21
In mixed form: 313/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+10/3 20/70+20/3 20/70+10/6 60/70+10/3 20/70+30/3 20/70+10/9 20/70+50/3 20/70+10/15 20/70+70/3 20/70+10/21