Add 28/56 and 70/75
28/56 + 70/75 is 43/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 75 is 4200
Next, find the equivalent fraction of both fractional numbers with denominator 4200 - For the 1st fraction, since 56 × 75 = 4200,
28/56 = 28 × 75/56 × 75 = 2100/4200 - Likewise, for the 2nd fraction, since 75 × 56 = 4200,
70/75 = 70 × 56/75 × 56 = 3920/4200 - Add the two like fractions:
2100/4200 + 3920/4200 = 2100 + 3920/4200 = 6020/4200 - 6020/4200 simplified gives 43/30
- So, 28/56 + 70/75 = 43/30
In mixed form: 113/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+70/75