Add 42/20 and 60/42
1st number: 2 2/20, 2nd number: 1 18/42
42/20 + 60/42 is 247/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
42/20 = 42 × 21/20 × 21 = 882/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
60/42 = 60 × 10/42 × 10 = 600/420 - Add the two like fractions:
882/420 + 600/420 = 882 + 600/420 = 1482/420 - 1482/420 simplified gives 247/70
- So, 42/20 + 60/42 = 247/70
In mixed form: 337/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+60/42 42/40+60/42 42/20+60/84 42/60+60/42