Add 28/75 and 75/90
28/75 + 75/90 is 181/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
28/75 = 28 × 6/75 × 6 = 168/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
75/90 = 75 × 5/90 × 5 = 375/450 - Add the two like fractions:
168/450 + 375/450 = 168 + 375/450 = 543/450 - 543/450 simplified gives 181/150
- So, 28/75 + 75/90 = 181/150
In mixed form: 131/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75+75/90 84/75+75/90