Add 54/40 and 63/18
1st number: 1 14/40, 2nd number: 3 9/18
54/40 + 63/18 is 97/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
54/40 = 54 × 9/40 × 9 = 486/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
63/18 = 63 × 20/18 × 20 = 1260/360 - Add the two like fractions:
486/360 + 1260/360 = 486 + 1260/360 = 1746/360 - 1746/360 simplified gives 97/20
- So, 54/40 + 63/18 = 97/20
In mixed form: 417/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+63/18 54/40+63/36 54/40+63/54 54/40+63/90