Add 72/75 and 30/80
72/75 + 30/80 is 267/200.
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,
72/75 = 72 × 16/75 × 16 = 1152/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
30/80 = 30 × 15/80 × 15 = 450/1200 - Add the two like fractions:
1152/1200 + 450/1200 = 1152 + 450/1200 = 1602/1200 - 1602/1200 simplified gives 267/200
- So, 72/75 + 30/80 = 267/200
In mixed form: 167/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/75+60/80 72/75+90/80