Add 27/28 and 3/42
27/28 + 3/42 is 29/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
27/28 = 27 × 3/28 × 3 = 81/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
3/42 = 3 × 2/42 × 2 = 6/84 - Add the two like fractions:
81/84 + 6/84 = 81 + 6/84 = 87/84 - 87/84 simplified gives 29/28
- So, 27/28 + 3/42 = 29/28
In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+3/42 27/28+6/42 27/56+3/42 27/28+3/84 81/28+3/42 27/28+9/42 27/84+3/42 27/28+15/42 27/28+21/42