Add 25/8 and 80/30
1st number: 3 1/8, 2nd number: 2 20/30
25/8 + 80/30 is 139/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
25/8 = 25 × 15/8 × 15 = 375/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
80/30 = 80 × 4/30 × 4 = 320/120 - Add the two like fractions:
375/120 + 320/120 = 375 + 320/120 = 695/120 - 695/120 simplified gives 139/24
- So, 25/8 + 80/30 = 139/24
In mixed form: 519/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8+80/30 25/16+80/30 25/8+80/60 75/8+80/30 25/24+80/30 25/8+80/90 25/40+80/30 25/56+80/30