Add 20/42 and 9/50
20/42 + 9/50 is 689/1050.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
20/42 = 20 × 25/42 × 25 = 500/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
9/50 = 9 × 21/50 × 21 = 189/1050 - Add the two like fractions:
500/1050 + 189/1050 = 500 + 189/1050 = 689/1050 - So, 20/42 + 9/50 = 689/1050
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+9/50 20/42+18/50 20/84+9/50 60/42+9/50 20/42+27/50 20/42+45/50 20/42+63/50