Add 40/15 and 7/8
1st number: 2 10/15, 2nd number: 7/8
40/15 + 7/8 is 85/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
40/15 = 40 × 8/15 × 8 = 320/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
7/8 = 7 × 15/8 × 15 = 105/120 - Add the two like fractions:
320/120 + 105/120 = 320 + 105/120 = 425/120 - 425/120 simplified gives 85/24
- So, 40/15 + 7/8 = 85/24
In mixed form: 313/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+7/8 40/15+14/8 40/30+7/8 40/15+7/16 40/15+21/8 40/45+7/8 40/15+7/24 40/15+35/8 40/75+7/8 40/15+7/40 40/15+49/8 40/15+7/56