Add 12/42 and 4/6
12/42 + 4/6 is 20/21.
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,
12/42 = 12 × 1/42 × 1 = 12/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
4/6 = 4 × 7/6 × 7 = 28/42 - Add the two like fractions:
12/42 + 28/42 = 12 + 28/42 = 40/42 - 40/42 simplified gives 20/21
- So, 12/42 + 4/6 = 20/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+4/6 12/42+8/6 12/84+4/6 12/42+4/12 36/42+4/6 12/42+12/6 12/42+4/18 60/42+4/6 12/42+20/6 12/42+4/30 84/42+4/6 12/42+28/6 12/42+4/42