Add 8/45 and 42/18
1st number: 8/45, 2nd number: 2 6/18
8/45 + 42/18 is 113/45.
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,
8/45 = 8 × 2/45 × 2 = 16/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
16/90 + 210/90 = 16 + 210/90 = 226/90 - 226/90 simplified gives 113/45
- So, 8/45 + 42/18 = 113/45
In mixed form: 223/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+42/18 8/45+84/18 8/90+42/18 8/45+42/36 24/45+42/18 8/45+42/54 40/45+42/18 8/45+42/90 56/45+42/18