Add 84/42 and 27/60
1st number: 2 0/42, 2nd number: 27/60
84/42 + 27/60 is 49/20.
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,
84/42 = 84 × 10/42 × 10 = 840/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Add the two like fractions:
840/420 + 189/420 = 840 + 189/420 = 1029/420 - 1029/420 simplified gives 49/20
- So, 84/42 + 27/60 = 49/20
In mixed form: 29/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+54/60 84/42+81/60