Add 30/75 and 1/80
30/75 + 1/80 is 33/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
30/75 = 30 × 16/75 × 16 = 480/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
1/80 = 1 × 15/80 × 15 = 15/1200 - Add the two like fractions:
480/1200 + 15/1200 = 480 + 15/1200 = 495/1200 - 495/1200 simplified gives 33/80
- So, 30/75 + 1/80 = 33/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75+1/80 30/75+2/80 90/75+1/80 30/75+3/80 30/75+5/80 30/75+7/80