Add 50/30 and 20/84
1st number: 1 20/30, 2nd number: 20/84
50/30 + 20/84 is 40/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
50/30 = 50 × 14/30 × 14 = 700/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
700/420 + 100/420 = 700 + 100/420 = 800/420 - 800/420 simplified gives 40/21
- So, 50/30 + 20/84 = 40/21
In mixed form: 119/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+40/84 50/60+20/84 50/30+60/84 50/90+20/84