Add 35/27 and 1/21
1st number: 1 8/27, 2nd number: 1/21
35/27 + 1/21 is 254/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
35/27 = 35 × 7/27 × 7 = 245/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
1/21 = 1 × 9/21 × 9 = 9/189 - Add the two like fractions:
245/189 + 9/189 = 245 + 9/189 = 254/189 - So, 35/27 + 1/21 = 254/189
In mixed form: 165/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27+1/21 35/27+2/21 35/54+1/21 35/27+1/42 35/27+3/21 35/81+1/21 35/27+1/63 35/27+5/21 35/27+7/21