Add 45/54 and 18/5
1st number: 45/54, 2nd number: 3 3/5
45/54 + 18/5 is 133/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 5 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Likewise, for the 2nd fraction, since 5 × 54 = 270,
18/5 = 18 × 54/5 × 54 = 972/270 - Add the two like fractions:
225/270 + 972/270 = 225 + 972/270 = 1197/270 - 1197/270 simplified gives 133/30
- So, 45/54 + 18/5 = 133/30
In mixed form: 413/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+18/5 45/54+36/5 45/54+18/10 45/54+54/5 45/54+18/15 45/54+90/5 45/54+18/25 45/54+18/35