Add 70/15 and 28/49
1st number: 4 10/15, 2nd number: 28/49
70/15 + 28/49 is 110/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
70/15 = 70 × 49/15 × 49 = 3430/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
28/49 = 28 × 15/49 × 15 = 420/735 - Add the two like fractions:
3430/735 + 420/735 = 3430 + 420/735 = 3850/735 - 3850/735 simplified gives 110/21
- So, 70/15 + 28/49 = 110/21
In mixed form: 55/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+56/49 70/30+28/49 70/15+28/98 70/15+84/49 70/45+28/49 70/75+28/49