Add 28/15 and 70/8
1st number: 1 13/15, 2nd number: 8 6/8
28/15 + 70/8 is 637/60.
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,
28/15 = 28 × 8/15 × 8 = 224/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
70/8 = 70 × 15/8 × 15 = 1050/120 - Add the two like fractions:
224/120 + 1050/120 = 224 + 1050/120 = 1274/120 - 1274/120 simplified gives 637/60
- So, 28/15 + 70/8 = 637/60
In mixed form: 1037/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+70/8 28/30+70/8 28/15+70/16 84/15+70/8 28/45+70/8 28/15+70/24 28/75+70/8 28/15+70/40 28/15+70/56