Add 50/70 and 12/28
50/70 + 12/28 is 8/7.
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,
12/28 = 12 × 5/28 × 5 = 60/140 - Add the two like fractions:
100/140 + 60/140 = 100 + 60/140 = 160/140 - 160/140 simplified gives 8/7
- So, 50/70 + 12/28 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70+24/28 50/70+12/56 50/70+36/28 50/70+12/84 50/70+60/28 50/70+84/28