Add 5/8 and 45/18
1st number: 5/8, 2nd number: 2 9/18
5/8 + 45/18 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
5/8 = 5 × 9/8 × 9 = 45/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
45/18 = 45 × 4/18 × 4 = 180/72 - Add the two like fractions:
45/72 + 180/72 = 45 + 180/72 = 225/72 - 225/72 simplified gives 25/8
- So, 5/8 + 45/18 = 25/8
In mixed form: 31/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8+45/18 5/8+90/18 5/16+45/18 5/8+45/36 15/8+45/18 5/24+45/18 5/8+45/54 25/8+45/18 5/40+45/18 5/8+45/90 35/8+45/18 5/56+45/18