Add 84/15 and 40/8
1st number: 5 9/15, 2nd number: 5 0/8
84/15 + 40/8 is 53/5.
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,
84/15 = 84 × 8/15 × 8 = 672/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
40/8 = 40 × 15/8 × 15 = 600/120 - Add the two like fractions:
672/120 + 600/120 = 672 + 600/120 = 1272/120 - 1272/120 simplified gives 53/5
- So, 84/15 + 40/8 = 53/5
In mixed form: 103/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+80/8 84/30+40/8 84/15+40/16 84/45+40/8 84/15+40/24 84/75+40/8 84/15+40/56