Add 18/28 and 50/70
18/28 + 50/70 is 19/14.
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,
50/70 = 50 × 2/70 × 2 = 100/140 - Add the two like fractions:
90/140 + 100/140 = 90 + 100/140 = 190/140 - 190/140 simplified gives 19/14
- So, 18/28 + 50/70 = 19/14
In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+50/70 18/56+50/70 54/28+50/70 18/84+50/70 90/28+50/70