Add 3/6 and 70/21
1st number: 3/6, 2nd number: 3 7/21
3/6 + 70/21 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
3/6 = 3 × 7/6 × 7 = 21/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
70/21 = 70 × 2/21 × 2 = 140/42 - Add the two like fractions:
21/42 + 140/42 = 21 + 140/42 = 161/42 - 161/42 simplified gives 23/6
- So, 3/6 + 70/21 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/12+70/21 3/6+70/42 9/6+70/21 3/18+70/21 3/6+70/63 15/6+70/21 3/30+70/21 21/6+70/21 3/42+70/21