Add 21/84 and 4/50
21/84 + 4/50 is 33/100.
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,
21/84 = 21 × 25/84 × 25 = 525/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
4/50 = 4 × 42/50 × 42 = 168/2100 - Add the two like fractions:
525/2100 + 168/2100 = 525 + 168/2100 = 693/2100 - 693/2100 simplified gives 33/100
- So, 21/84 + 4/50 = 33/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/84+4/50 21/84+8/50 63/84+4/50 21/84+12/50 21/84+20/50 21/84+28/50