Add 21/6 and 80/70
1st number: 3 3/6, 2nd number: 1 10/70
21/6 + 80/70 is 65/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
21/6 = 21 × 35/6 × 35 = 735/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210 - Add the two like fractions:
735/210 + 240/210 = 735 + 240/210 = 975/210 - 975/210 simplified gives 65/14
- So, 21/6 + 80/70 = 65/14
In mixed form: 49/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+80/70 21/12+80/70 63/6+80/70 21/18+80/70 21/30+80/70 21/42+80/70