Add 75/80 and 30/50
75/80 + 30/50 is 123/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
75/80 = 75 × 5/80 × 5 = 375/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
30/50 = 30 × 8/50 × 8 = 240/400 - Add the two like fractions:
375/400 + 240/400 = 375 + 240/400 = 615/400 - 615/400 simplified gives 123/80
- So, 75/80 + 30/50 = 123/80
In mixed form: 143/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+60/50 75/80+90/50