Add 20/40 and 54/6
1st number: 20/40, 2nd number: 9 0/6
20/40 + 54/6 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
54/6 = 54 × 20/6 × 20 = 1080/120 - Add the two like fractions:
60/120 + 1080/120 = 60 + 1080/120 = 1140/120 - 1140/120 simplified gives 19/2
- So, 20/40 + 54/6 = 19/2
In mixed form: 91/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+54/6 20/40+54/12 60/40+54/6 20/40+54/18 20/40+54/30 20/40+54/42