Add 5/28 and 80/42
1st number: 5/28, 2nd number: 1 38/42
5/28 + 80/42 is 25/12.
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,
5/28 = 5 × 3/28 × 3 = 15/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
80/42 = 80 × 2/42 × 2 = 160/84 - Add the two like fractions:
15/84 + 160/84 = 15 + 160/84 = 175/84 - 175/84 simplified gives 25/12
- So, 5/28 + 80/42 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+80/42 5/56+80/42 5/28+80/84 15/28+80/42 5/84+80/42 25/28+80/42 35/28+80/42