Add 28/84 and 35/50
28/84 + 35/50 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
28/84 = 28 × 25/84 × 25 = 700/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
35/50 = 35 × 42/50 × 42 = 1470/2100 - Add the two like fractions:
700/2100 + 1470/2100 = 700 + 1470/2100 = 2170/2100 - 2170/2100 simplified gives 31/30
- So, 28/84 + 35/50 = 31/30
In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84+35/50 28/84+70/50