Add 54/5 and 45/8
1st number: 10 4/5, 2nd number: 5 5/8
54/5 + 45/8 is 657/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
54/5 = 54 × 8/5 × 8 = 432/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
45/8 = 45 × 5/8 × 5 = 225/40 - Add the two like fractions:
432/40 + 225/40 = 432 + 225/40 = 657/40 - So, 54/5 + 45/8 = 657/40
In mixed form: 1617/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5+90/8 54/10+45/8 54/5+45/16 54/15+45/8 54/5+45/24 54/25+45/8 54/5+45/40 54/35+45/8 54/5+45/56