Add 18/45 and 40/8
1st number: 18/45, 2nd number: 5 0/8
18/45 + 40/8 is 27/5.
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,
40/8 = 40 × 45/8 × 45 = 1800/360 - Add the two like fractions:
144/360 + 1800/360 = 144 + 1800/360 = 1944/360 - 1944/360 simplified gives 27/5
- So, 18/45 + 40/8 = 27/5
In mixed form: 52/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+40/8 18/45+80/8 18/90+40/8 18/45+40/16 54/45+40/8 18/45+40/24 90/45+40/8 18/45+40/56