Add 50/72 and 21/12
1st number: 50/72, 2nd number: 1 9/12
50/72 + 21/12 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
50/72 = 50 × 1/72 × 1 = 50/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
21/12 = 21 × 6/12 × 6 = 126/72 - Add the two like fractions:
50/72 + 126/72 = 50 + 126/72 = 176/72 - 176/72 simplified gives 22/9
- So, 50/72 + 21/12 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72+42/12 50/72+21/24 50/72+63/12 50/72+21/36 50/72+21/60 50/72+21/84