Add 18/28 and 72/14
1st number: 18/28, 2nd number: 5 2/14
18/28 + 72/14 is 81/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
18/28 = 18 × 1/28 × 1 = 18/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
72/14 = 72 × 2/14 × 2 = 144/28 - Add the two like fractions:
18/28 + 144/28 = 18 + 144/28 = 162/28 - 162/28 simplified gives 81/14
- So, 18/28 + 72/14 = 81/14
In mixed form: 511/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+72/14 18/56+72/14 18/28+72/28 54/28+72/14 18/84+72/14 18/28+72/42 90/28+72/14 18/28+72/70 18/28+72/98