Add 50/21 and 20/27
1st number: 2 8/21, 2nd number: 20/27
50/21 + 20/27 is 590/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
50/21 = 50 × 9/21 × 9 = 450/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
20/27 = 20 × 7/27 × 7 = 140/189 - Add the two like fractions:
450/189 + 140/189 = 450 + 140/189 = 590/189 - So, 50/21 + 20/27 = 590/189
In mixed form: 323/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+40/27 50/42+20/27 50/21+20/54 50/21+60/27 50/63+20/27 50/21+20/81