Add 35/70 and 12/28
35/70 + 12/28 is 13/14.
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,
35/70 = 35 × 2/70 × 2 = 70/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
12/28 = 12 × 5/28 × 5 = 60/140 - Add the two like fractions:
70/140 + 60/140 = 70 + 60/140 = 130/140 - 130/140 simplified gives 13/14
- So, 35/70 + 12/28 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 35/70+24/28 35/70+12/56 35/70+36/28 35/70+12/84 35/70+60/28 35/70+84/28