Add 50/20 and 21/8
1st number: 2 10/20, 2nd number: 2 5/8
50/20 + 21/8 is 41/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
50/20 = 50 × 2/20 × 2 = 100/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Add the two like fractions:
100/40 + 105/40 = 100 + 105/40 = 205/40 - 205/40 simplified gives 41/8
- So, 50/20 + 21/8 = 41/8
In mixed form: 51/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20+42/8 50/40+21/8 50/20+21/16 50/20+63/8 50/60+21/8 50/20+21/24 50/20+21/40 50/20+21/56