Add 4/28 and 18/27
4/28 + 18/27 is 17/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
4/28 = 4 × 27/28 × 27 = 108/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
18/27 = 18 × 28/27 × 28 = 504/756 - Add the two like fractions:
108/756 + 504/756 = 108 + 504/756 = 612/756 - 612/756 simplified gives 17/21
- So, 4/28 + 18/27 = 17/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+18/27 4/28+36/27 4/56+18/27 4/28+18/54 12/28+18/27 4/28+54/27 4/84+18/27 4/28+18/81 20/28+18/27 4/28+90/27