Add 70/20 and 64/3
1st number: 3 10/20, 2nd number: 21 1/3
70/20 + 64/3 is 149/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
70/20 = 70 × 3/20 × 3 = 210/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
64/3 = 64 × 20/3 × 20 = 1280/60 - Add the two like fractions:
210/60 + 1280/60 = 210 + 1280/60 = 1490/60 - 1490/60 simplified gives 149/6
- So, 70/20 + 64/3 = 149/6
In mixed form: 245/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+64/3 70/20+64/6 70/60+64/3 70/20+64/9 70/20+64/15 70/20+64/21