Add 15/5 and 12/8
1st number: 3 0/5, 2nd number: 1 4/8
15/5 + 12/8 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
15/5 = 15 × 8/5 × 8 = 120/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
12/8 = 12 × 5/8 × 5 = 60/40 - Add the two like fractions:
120/40 + 60/40 = 120 + 60/40 = 180/40 - 180/40 simplified gives 9/2
- So, 15/5 + 12/8 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5+12/8 15/5+24/8 15/10+12/8 15/5+12/16 45/5+12/8 15/5+36/8 15/5+12/24 75/5+12/8 15/5+60/8 15/25+12/8 15/5+12/40 15/5+84/8 15/35+12/8 15/5+12/56