Add 50/30 and 21/12
1st number: 1 20/30, 2nd number: 1 9/12
50/30 + 21/12 is 41/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
50/30 = 50 × 2/30 × 2 = 100/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Add the two like fractions:
100/60 + 105/60 = 100 + 105/60 = 205/60 - 205/60 simplified gives 41/12
- So, 50/30 + 21/12 = 41/12
In mixed form: 35/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+42/12 50/60+21/12 50/30+21/24 50/30+63/12 50/90+21/12 50/30+21/36 50/30+21/60 50/30+21/84