Add 54/8 and 8/40
1st number: 6 6/8, 2nd number: 8/40
54/8 + 8/40 is 139/20.
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,
8/40 = 8 × 1/40 × 1 = 8/40 - Add the two like fractions:
270/40 + 8/40 = 270 + 8/40 = 278/40 - 278/40 simplified gives 139/20
- So, 54/8 + 8/40 = 139/20
In mixed form: 619/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+16/40 54/16+8/40 54/8+8/80 54/8+24/40 54/24+8/40 54/40+8/40 54/8+56/40 54/56+8/40