Add 6/20 and 80/42
1st number: 6/20, 2nd number: 1 38/42
6/20 + 80/42 is 463/210.
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,
6/20 = 6 × 21/20 × 21 = 126/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
80/42 = 80 × 10/42 × 10 = 800/420 - Add the two like fractions:
126/420 + 800/420 = 126 + 800/420 = 926/420 - 926/420 simplified gives 463/210
- So, 6/20 + 80/42 = 463/210
In mixed form: 243/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20+80/42 6/40+80/42 6/20+80/84 18/20+80/42 6/60+80/42 30/20+80/42 42/20+80/42