Add 30/36 and 75/45
1st number: 30/36, 2nd number: 1 30/45
30/36 + 75/45 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
30/36 = 30 × 5/36 × 5 = 150/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
75/45 = 75 × 4/45 × 4 = 300/180 - Add the two like fractions:
150/180 + 300/180 = 150 + 300/180 = 450/180 - 450/180 simplified gives 5/2
- So, 30/36 + 75/45 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36+75/45 30/72+75/45 30/36+75/90 90/36+75/45