Add 18/45 and 9/14
18/45 + 9/14 is 73/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
9/14 = 9 × 45/14 × 45 = 405/630 - Add the two like fractions:
252/630 + 405/630 = 252 + 405/630 = 657/630 - 657/630 simplified gives 73/70
- So, 18/45 + 9/14 = 73/70
In mixed form: 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+9/14 18/45+18/14 18/90+9/14 18/45+9/28 54/45+9/14 18/45+27/14 18/45+9/42 90/45+9/14 18/45+45/14 18/45+9/70 18/45+63/14 18/45+9/98