Add 28/70 and 14/28
28/70 + 14/28 is 9/10.
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,
28/70 = 28 × 2/70 × 2 = 56/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
14/28 = 14 × 5/28 × 5 = 70/140 - Add the two like fractions:
56/140 + 70/140 = 56 + 70/140 = 126/140 - 126/140 simplified gives 9/10
- So, 28/70 + 14/28 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+14/28 28/70+14/56 84/70+14/28 28/70+42/28 28/70+14/84 28/70+70/28 28/70+98/28