Add 20/42 and 4/6
20/42 + 4/6 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
20/42 = 20 × 1/42 × 1 = 20/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
4/6 = 4 × 7/6 × 7 = 28/42 - Add the two like fractions:
20/42 + 28/42 = 20 + 28/42 = 48/42 - 48/42 simplified gives 8/7
- So, 20/42 + 4/6 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+4/6 20/42+8/6 20/84+4/6 20/42+4/12 60/42+4/6 20/42+12/6 20/42+4/18 20/42+20/6 20/42+4/30 20/42+28/6 20/42+4/42