Add 81/10 and 2/8
1st number: 8 1/10, 2nd number: 2/8
81/10 + 2/8 is 167/20.
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,
81/10 = 81 × 4/10 × 4 = 324/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
2/8 = 2 × 5/8 × 5 = 10/40 - Add the two like fractions:
324/40 + 10/40 = 324 + 10/40 = 334/40 - 334/40 simplified gives 167/20
- So, 81/10 + 2/8 = 167/20
In mixed form: 87/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/10+4/8 81/20+2/8 81/10+2/16 81/10+6/8 81/30+2/8 81/10+2/24 81/10+10/8 81/50+2/8 81/10+2/40 81/10+14/8 81/70+2/8 81/10+2/56