Add 42/12 and 20/8
1st number: 3 6/12, 2nd number: 2 4/8
42/12 + 20/8 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
42/12 = 42 × 2/12 × 2 = 84/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
20/8 = 20 × 3/8 × 3 = 60/24 - Add the two like fractions:
84/24 + 60/24 = 84 + 60/24 = 144/24 - 144/24 simplified gives 6/1
- So, 42/12 + 20/8 = 6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+20/8 42/12+40/8 42/24+20/8 42/12+20/16 42/12+60/8 42/36+20/8 42/12+20/24 42/60+20/8 42/12+20/40 42/84+20/8 42/12+20/56