Add 75/90 and 20/27
75/90 + 20/27 is 85/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
75/90 = 75 × 3/90 × 3 = 225/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
20/27 = 20 × 10/27 × 10 = 200/270 - Add the two like fractions:
225/270 + 200/270 = 225 + 200/270 = 425/270 - 425/270 simplified gives 85/54
- So, 75/90 + 20/27 = 85/54
In mixed form: 131/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/90+40/27 75/90+20/54 75/90+60/27 75/90+20/81