Add 54/18 and 45/10
1st number: 3 0/18, 2nd number: 4 5/10
54/18 + 45/10 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 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 10 × 9 = 90,
45/10 = 45 × 9/10 × 9 = 405/90 - Add the two like fractions:
270/90 + 405/90 = 270 + 405/90 = 675/90 - 675/90 simplified gives 15/2
- So, 54/18 + 45/10 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+90/10 54/36+45/10 54/18+45/20 54/18+45/30 54/90+45/10 54/18+45/50 54/18+45/70