Add 20/6 and 24/21
1st number: 3 2/6, 2nd number: 1 3/21
20/6 + 24/21 is 94/21.
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,
20/6 = 20 × 7/6 × 7 = 140/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
24/21 = 24 × 2/21 × 2 = 48/42 - Add the two like fractions:
140/42 + 48/42 = 140 + 48/42 = 188/42 - 188/42 simplified gives 94/21
- So, 20/6 + 24/21 = 94/21
In mixed form: 410/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/6+24/21 20/6+48/21 20/12+24/21 20/6+24/42 60/6+24/21 20/6+72/21 20/18+24/21 20/6+24/63 20/30+24/21 20/42+24/21