Add 10/28 and 9/54
10/28 + 9/54 is 11/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
10/28 = 10 × 27/28 × 27 = 270/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
9/54 = 9 × 14/54 × 14 = 126/756 - Add the two like fractions:
270/756 + 126/756 = 270 + 126/756 = 396/756 - 396/756 simplified gives 11/21
- So, 10/28 + 9/54 = 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28+9/54 10/28+18/54 10/56+9/54 30/28+9/54 10/28+27/54 10/84+9/54 50/28+9/54 10/28+45/54 70/28+9/54 10/28+63/54