Add 6/40 and 54/18
1st number: 6/40, 2nd number: 3 0/18
6/40 + 54/18 is 63/20.
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,
6/40 = 6 × 9/40 × 9 = 54/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
54/18 = 54 × 20/18 × 20 = 1080/360 - Add the two like fractions:
54/360 + 1080/360 = 54 + 1080/360 = 1134/360 - 1134/360 simplified gives 63/20
- So, 6/40 + 54/18 = 63/20
In mixed form: 33/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+54/18 6/80+54/18 6/40+54/36 18/40+54/18 30/40+54/18 6/40+54/90 42/40+54/18