Add 7/45 and 2/18
7/45 + 2/18 is 4/15.
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,
2/18 = 2 × 5/18 × 5 = 10/90 - Add the two like fractions:
14/90 + 10/90 = 14 + 10/90 = 24/90 - 24/90 simplified gives 4/15
- So, 7/45 + 2/18 = 4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+2/18 7/45+4/18 7/90+2/18 7/45+2/36 21/45+2/18 7/45+6/18 7/45+2/54 35/45+2/18 7/45+10/18 7/45+2/90 49/45+2/18 7/45+14/18