Add 54/8 and 75/40
1st number: 6 6/8, 2nd number: 1 35/40
54/8 + 75/40 is 69/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
54/8 = 54 × 5/8 × 5 = 270/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
75/40 = 75 × 1/40 × 1 = 75/40 - Add the two like fractions:
270/40 + 75/40 = 270 + 75/40 = 345/40 - 345/40 simplified gives 69/8
- So, 54/8 + 75/40 = 69/8
In mixed form: 85/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16+75/40 54/8+75/80 54/24+75/40 54/40+75/40 54/56+75/40