Add 50/84 and 80/20
1st number: 50/84, 2nd number: 4 0/20
50/84 + 80/20 is 193/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
50/84 = 50 × 5/84 × 5 = 250/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
80/20 = 80 × 21/20 × 21 = 1680/420 - Add the two like fractions:
250/420 + 1680/420 = 250 + 1680/420 = 1930/420 - 1930/420 simplified gives 193/42
- So, 50/84 + 80/20 = 193/42
In mixed form: 425/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+80/40 50/84+80/60