Add 30/20 and 80/75
1st number: 1 10/20, 2nd number: 1 5/75
30/20 + 80/75 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
30/20 = 30 × 15/20 × 15 = 450/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
80/75 = 80 × 4/75 × 4 = 320/300 - Add the two like fractions:
450/300 + 320/300 = 450 + 320/300 = 770/300 - 770/300 simplified gives 77/30
- So, 30/20 + 80/75 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+80/75 30/40+80/75 90/20+80/75 30/60+80/75