Add 5/70 and 18/28
5/70 + 18/28 is 5/7.
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,
5/70 = 5 × 2/70 × 2 = 10/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Add the two like fractions:
10/140 + 90/140 = 10 + 90/140 = 100/140 - 100/140 simplified gives 5/7
- So, 5/70 + 18/28 = 5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+18/28 5/70+36/28 5/70+18/56 15/70+18/28 5/70+54/28 5/70+18/84 25/70+18/28 5/70+90/28 35/70+18/28