Add 7/45 and 9/18
7/45 + 9/18 is 59/90.
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,
7/45 = 7 × 2/45 × 2 = 14/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
9/18 = 9 × 5/18 × 5 = 45/90 - Add the two like fractions:
14/90 + 45/90 = 14 + 45/90 = 59/90 - So, 7/45 + 9/18 = 59/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+9/18 7/90+9/18 7/45+9/36 21/45+9/18 7/45+27/18 7/45+9/54 35/45+9/18 7/45+45/18 7/45+9/90 49/45+9/18 7/45+63/18