Add 50/42 and 20/84
1st number: 1 8/42, 2nd number: 20/84
50/42 + 20/84 is 10/7.
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,
50/42 = 50 × 2/42 × 2 = 100/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Add the two like fractions:
100/84 + 20/84 = 100 + 20/84 = 120/84 - 120/84 simplified gives 10/7
- So, 50/42 + 20/84 = 10/7
In mixed form: 13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+40/84 50/84+20/84 50/42+60/84