Add 32/21 and 30/81
1st number: 1 11/21, 2nd number: 30/81
32/21 + 30/81 is 358/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
32/21 = 32 × 27/21 × 27 = 864/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
30/81 = 30 × 7/81 × 7 = 210/567 - Add the two like fractions:
864/567 + 210/567 = 864 + 210/567 = 1074/567 - 1074/567 simplified gives 358/189
- So, 32/21 + 30/81 = 358/189
In mixed form: 1169/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/21+30/81 32/21+60/81 32/42+30/81 96/21+30/81 32/21+90/81 32/63+30/81