Add 18/45 and 5/8
18/45 + 5/8 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
18/45 = 18 × 8/45 × 8 = 144/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
5/8 = 5 × 45/8 × 45 = 225/360 - Add the two like fractions:
144/360 + 225/360 = 144 + 225/360 = 369/360 - 369/360 simplified gives 41/40
- So, 18/45 + 5/8 = 41/40
In mixed form: 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+5/8 18/45+10/8 18/90+5/8 18/45+5/16 54/45+5/8 18/45+15/8 18/45+5/24 90/45+5/8 18/45+25/8 18/45+5/40 18/45+35/8 18/45+5/56