Add 54/40 and 20/8
1st number: 1 14/40, 2nd number: 2 4/8
54/40 + 20/8 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
54/40 = 54 × 1/40 × 1 = 54/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
20/8 = 20 × 5/8 × 5 = 100/40 - Add the two like fractions:
54/40 + 100/40 = 54 + 100/40 = 154/40 - 154/40 simplified gives 77/20
- So, 54/40 + 20/8 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+40/8 54/80+20/8 54/40+20/16 54/40+60/8 54/40+20/24 54/40+20/40 54/40+20/56