Add 45/36 and 75/90
1st number: 1 9/36, 2nd number: 75/90
45/36 + 75/90 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
45/36 = 45 × 5/36 × 5 = 225/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
75/90 = 75 × 2/90 × 2 = 150/180 - Add the two like fractions:
225/180 + 150/180 = 225 + 150/180 = 375/180 - 375/180 simplified gives 25/12
- So, 45/36 + 75/90 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36+75/90 45/72+75/90