Add 54/18 and 8/45
1st number: 3 0/18, 2nd number: 8/45
54/18 + 8/45 is 143/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
54/18 = 54 × 5/18 × 5 = 270/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
8/45 = 8 × 2/45 × 2 = 16/90 - Add the two like fractions:
270/90 + 16/90 = 270 + 16/90 = 286/90 - 286/90 simplified gives 143/45
- So, 54/18 + 8/45 = 143/45
In mixed form: 38/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+16/45 54/36+8/45 54/18+8/90 54/18+24/45 54/18+40/45 54/90+8/45 54/18+56/45