Add 27/10 and 54/8
1st number: 2 7/10, 2nd number: 6 6/8
27/10 + 54/8 is 189/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
27/10 = 27 × 4/10 × 4 = 108/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
54/8 = 54 × 5/8 × 5 = 270/40 - Add the two like fractions:
108/40 + 270/40 = 108 + 270/40 = 378/40 - 378/40 simplified gives 189/20
- So, 27/10 + 54/8 = 189/20
In mixed form: 99/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+54/8 27/20+54/8 27/10+54/16 81/10+54/8 27/30+54/8 27/10+54/24 27/50+54/8 27/10+54/40 27/70+54/8 27/10+54/56