Add 30/50 and 45/84
30/50 + 45/84 is 159/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 50 × 42 = 2100,
30/50 = 30 × 42/50 × 42 = 1260/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
45/84 = 45 × 25/84 × 25 = 1125/2100 - Add the two like fractions:
1260/2100 + 1125/2100 = 1260 + 1125/2100 = 2385/2100 - 2385/2100 simplified gives 159/140
- So, 30/50 + 45/84 = 159/140
In mixed form: 119/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/50+45/84 30/50+90/84 90/50+45/84