Add 20/42 and 50/8
1st number: 20/42, 2nd number: 6 2/8
20/42 + 50/8 is 565/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
20/42 = 20 × 4/42 × 4 = 80/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
50/8 = 50 × 21/8 × 21 = 1050/168 - Add the two like fractions:
80/168 + 1050/168 = 80 + 1050/168 = 1130/168 - 1130/168 simplified gives 565/84
- So, 20/42 + 50/8 = 565/84
In mixed form: 661/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+50/8 20/84+50/8 20/42+50/16 60/42+50/8 20/42+50/24 20/42+50/40 20/42+50/56