Add 80/8 and 42/18
1st number: 10 0/8, 2nd number: 2 6/18
80/8 + 42/18 is 37/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
80/8 = 80 × 9/8 × 9 = 720/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
42/18 = 42 × 4/18 × 4 = 168/72 - Add the two like fractions:
720/72 + 168/72 = 720 + 168/72 = 888/72 - 888/72 simplified gives 37/3
- So, 80/8 + 42/18 = 37/3
In mixed form: 121/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+84/18 80/16+42/18 80/8+42/36 80/24+42/18 80/8+42/54 80/40+42/18 80/8+42/90 80/56+42/18