Add 1/42 and 80/60
1st number: 1/42, 2nd number: 1 20/60
1/42 + 80/60 is 19/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
1/42 = 1 × 10/42 × 10 = 10/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420 - Add the two like fractions:
10/420 + 560/420 = 10 + 560/420 = 570/420 - 570/420 simplified gives 19/14
- So, 1/42 + 80/60 = 19/14
In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+80/60 1/84+80/60 3/42+80/60 5/42+80/60 7/42+80/60