Add 40/8 and 12/15
1st number: 5 0/8, 2nd number: 12/15
40/8 + 12/15 is 29/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
40/8 = 40 × 15/8 × 15 = 600/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
12/15 = 12 × 8/15 × 8 = 96/120 - Add the two like fractions:
600/120 + 96/120 = 600 + 96/120 = 696/120 - 696/120 simplified gives 29/5
- So, 40/8 + 12/15 = 29/5
In mixed form: 54/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+12/15 40/8+24/15 40/16+12/15 40/8+12/30 40/8+36/15 40/24+12/15 40/8+12/45 40/8+60/15 40/8+12/75 40/8+84/15 40/56+12/15