Add 2/21 and 20/6
1st number: 2/21, 2nd number: 3 2/6
2/21 + 20/6 is 24/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
2/21 = 2 × 2/21 × 2 = 4/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
20/6 = 20 × 7/6 × 7 = 140/42 - Add the two like fractions:
4/42 + 140/42 = 4 + 140/42 = 144/42 - 144/42 simplified gives 24/7
- So, 2/21 + 20/6 = 24/7
In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+20/6 2/21+40/6 2/42+20/6 2/21+20/12 6/21+20/6 2/21+60/6 2/63+20/6 2/21+20/18 10/21+20/6 2/21+20/30 14/21+20/6 2/21+20/42