Add 20/50 and 42/8
1st number: 20/50, 2nd number: 5 2/8
20/50 + 42/8 is 113/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
20/50 = 20 × 4/50 × 4 = 80/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
42/8 = 42 × 25/8 × 25 = 1050/200 - Add the two like fractions:
80/200 + 1050/200 = 80 + 1050/200 = 1130/200 - 1130/200 simplified gives 113/20
- So, 20/50 + 42/8 = 113/20
In mixed form: 513/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50+42/8 20/50+84/8 20/50+42/16 60/50+42/8 20/50+42/24 20/50+42/40 20/50+42/56