Add 20/60 and 6/42
20/60 + 6/42 is 10/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
6/42 = 6 × 10/42 × 10 = 60/420 - Add the two like fractions:
140/420 + 60/420 = 140 + 60/420 = 200/420 - 200/420 simplified gives 10/21
- So, 20/60 + 6/42 = 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/60+6/42 20/60+12/42 20/60+6/84 20/60+18/42 20/60+30/42