Add 40/21 and 2/27
1st number: 1 19/21, 2nd number: 2/27
40/21 + 2/27 is 374/189.
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,
40/21 = 40 × 9/21 × 9 = 360/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
2/27 = 2 × 7/27 × 7 = 14/189 - Add the two like fractions:
360/189 + 14/189 = 360 + 14/189 = 374/189 - So, 40/21 + 2/27 = 374/189
In mixed form: 1185/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+2/27 40/21+4/27 40/42+2/27 40/21+2/54 40/21+6/27 40/63+2/27 40/21+2/81 40/21+10/27 40/21+14/27