Add 30/20 and 70/75
1st number: 1 10/20, 2nd number: 70/75
30/20 + 70/75 is 73/30.
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,
70/75 = 70 × 4/75 × 4 = 280/300 - Add the two like fractions:
450/300 + 280/300 = 450 + 280/300 = 730/300 - 730/300 simplified gives 73/30
- So, 30/20 + 70/75 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+70/75 30/40+70/75 90/20+70/75 30/60+70/75