Add 75/20 and 75/30
1st number: 3 15/20, 2nd number: 2 15/30
75/20 + 75/30 is 25/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
75/20 = 75 × 3/20 × 3 = 225/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Add the two like fractions:
225/60 + 150/60 = 225 + 150/60 = 375/60 - 375/60 simplified gives 25/4
- So, 75/20 + 75/30 = 25/4
In mixed form: 61/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+75/30 75/20+75/60 75/60+75/30 75/20+75/90