Add 4/21 and 16/6
1st number: 4/21, 2nd number: 2 4/6
4/21 + 16/6 is 20/7.
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,
4/21 = 4 × 2/21 × 2 = 8/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
16/6 = 16 × 7/6 × 7 = 112/42 - Add the two like fractions:
8/42 + 112/42 = 8 + 112/42 = 120/42 - 120/42 simplified gives 20/7
- So, 4/21 + 16/6 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+16/6 4/21+32/6 4/42+16/6 4/21+16/12 12/21+16/6 4/21+48/6 4/63+16/6 4/21+16/18 20/21+16/6 4/21+80/6 4/21+16/30 28/21+16/6 4/21+16/42