Add 18/28 and 7/70
18/28 + 7/70 is 26/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
7/70 = 7 × 2/70 × 2 = 14/140 - Add the two like fractions:
90/140 + 14/140 = 90 + 14/140 = 104/140 - 104/140 simplified gives 26/35
- So, 18/28 + 7/70 = 26/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+7/70 18/28+14/70 18/56+7/70 54/28+7/70 18/28+21/70 18/84+7/70 90/28+7/70 18/28+35/70 18/28+49/70