Add 54/40 and 18/80
1st number: 1 14/40, 2nd number: 18/80
54/40 + 18/80 is 63/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
54/40 = 54 × 2/40 × 2 = 108/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Add the two like fractions:
108/80 + 18/80 = 108 + 18/80 = 126/80 - 126/80 simplified gives 63/40
- So, 54/40 + 18/80 = 63/40
In mixed form: 123/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+36/80 54/80+18/80 54/40+54/80 54/40+90/80