Add 12/42 and 2/84
12/42 + 2/84 is 13/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
12/42 = 12 × 2/42 × 2 = 24/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
2/84 = 2 × 1/84 × 1 = 2/84 - Add the two like fractions:
24/84 + 2/84 = 24 + 2/84 = 26/84 - 26/84 simplified gives 13/42
- So, 12/42 + 2/84 = 13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+2/84 12/42+4/84 12/84+2/84 36/42+2/84 12/42+6/84 60/42+2/84 12/42+10/84 84/42+2/84 12/42+14/84