Add 54/8 and 9/80
1st number: 6 6/8, 2nd number: 9/80
54/8 + 9/80 is 549/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
54/8 = 54 × 10/8 × 10 = 540/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Add the two like fractions:
540/80 + 9/80 = 540 + 9/80 = 549/80 - So, 54/8 + 9/80 = 549/80
In mixed form: 669/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+18/80 54/16+9/80 54/8+27/80 54/24+9/80 54/8+45/80 54/40+9/80 54/8+63/80 54/56+9/80