Add 18/28 and 48/90
18/28 + 48/90 is 247/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
18/28 = 18 × 45/28 × 45 = 810/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
48/90 = 48 × 14/90 × 14 = 672/1260 - Add the two like fractions:
810/1260 + 672/1260 = 810 + 672/1260 = 1482/1260 - 1482/1260 simplified gives 247/210
- So, 18/28 + 48/90 = 247/210
In mixed form: 137/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+48/90 18/28+96/90 18/56+48/90 54/28+48/90 18/84+48/90 90/28+48/90