Add 75/45 and 63/18
1st number: 1 30/45, 2nd number: 3 9/18
75/45 + 63/18 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
75/45 = 75 × 2/45 × 2 = 150/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Add the two like fractions:
150/90 + 315/90 = 150 + 315/90 = 465/90 - 465/90 simplified gives 31/6
- So, 75/45 + 63/18 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/90+63/18 75/45+63/36 75/45+63/54 75/45+63/90