Add 12/42 and 12/60
12/42 + 12/60 is 17/35.
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,
12/42 = 12 × 10/42 × 10 = 120/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
12/60 = 12 × 7/60 × 7 = 84/420 - Add the two like fractions:
120/420 + 84/420 = 120 + 84/420 = 204/420 - 204/420 simplified gives 17/35
- So, 12/42 + 12/60 = 17/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+12/60 12/42+24/60 12/84+12/60 36/42+12/60 12/42+36/60 60/42+12/60 84/42+12/60 12/42+84/60