Add 54/8 and 16/40
1st number: 6 6/8, 2nd number: 16/40
54/8 + 16/40 is 143/20.
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,
16/40 = 16 × 1/40 × 1 = 16/40 - Add the two like fractions:
270/40 + 16/40 = 270 + 16/40 = 286/40 - 286/40 simplified gives 143/20
- So, 54/8 + 16/40 = 143/20
In mixed form: 73/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+32/40 54/16+16/40 54/8+16/80 54/8+48/40 54/24+16/40 54/8+80/40 54/40+16/40 54/56+16/40