Add 80/18 and 25/8
1st number: 4 8/18, 2nd number: 3 1/8
80/18 + 25/8 is 545/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
80/18 = 80 × 4/18 × 4 = 320/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
25/8 = 25 × 9/8 × 9 = 225/72 - Add the two like fractions:
320/72 + 225/72 = 320 + 225/72 = 545/72 - So, 80/18 + 25/8 = 545/72
In mixed form: 741/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+50/8 80/36+25/8 80/18+25/16 80/18+75/8 80/54+25/8 80/18+25/24 80/90+25/8 80/18+25/40 80/18+25/56