Add 80/70 and 50/56
1st number: 1 10/70, 2nd number: 50/56
80/70 + 50/56 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
50/56 = 50 × 5/56 × 5 = 250/280 - Add the two like fractions:
320/280 + 250/280 = 320 + 250/280 = 570/280 - 570/280 simplified gives 57/28
- So, 80/70 + 50/56 = 57/28
In mixed form: 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: