Add 20/42 and 2/4
20/42 + 2/4 is 41/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
2/4 = 2 × 21/4 × 21 = 42/84 - Add the two like fractions:
40/84 + 42/84 = 40 + 42/84 = 82/84 - 82/84 simplified gives 41/42
- So, 20/42 + 2/4 = 41/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+2/4 20/84+2/4 20/42+2/8 60/42+2/4 20/42+6/4 20/42+2/12 20/42+10/4 20/42+2/20 20/42+14/4 20/42+2/28