Add 27/8 and 54/20
1st number: 3 3/8, 2nd number: 2 14/20
27/8 + 54/20 is 243/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
27/8 = 27 × 5/8 × 5 = 135/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
54/20 = 54 × 2/20 × 2 = 108/40 - Add the two like fractions:
135/40 + 108/40 = 135 + 108/40 = 243/40 - So, 27/8 + 54/20 = 243/40
In mixed form: 63/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+54/20 27/16+54/20 27/8+54/40 81/8+54/20 27/24+54/20 27/8+54/60 27/40+54/20 27/56+54/20