Add 50/70 and 81/28
1st number: 50/70, 2nd number: 2 25/28
50/70 + 81/28 is 101/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
50/70 = 50 × 2/70 × 2 = 100/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Add the two like fractions:
100/140 + 405/140 = 100 + 405/140 = 505/140 - 505/140 simplified gives 101/28
- So, 50/70 + 81/28 = 101/28
In mixed form: 317/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70+81/56 50/70+81/84