Add 84/15 and 10/8
1st number: 5 9/15, 2nd number: 1 2/8
84/15 + 10/8 is 137/20.
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,
10/8 = 10 × 15/8 × 15 = 150/120 - Add the two like fractions:
672/120 + 150/120 = 672 + 150/120 = 822/120 - 822/120 simplified gives 137/20
- So, 84/15 + 10/8 = 137/20
In mixed form: 617/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+20/8 84/30+10/8 84/15+10/16 84/15+30/8 84/45+10/8 84/15+10/24 84/15+50/8 84/75+10/8 84/15+10/40 84/15+70/8 84/15+10/56