Add 3/27 and 40/20
1st number: 3/27, 2nd number: 2 0/20
3/27 + 40/20 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
3/27 = 3 × 20/27 × 20 = 60/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
40/20 = 40 × 27/20 × 27 = 1080/540 - Add the two like fractions:
60/540 + 1080/540 = 60 + 1080/540 = 1140/540 - 1140/540 simplified gives 19/9
- So, 3/27 + 40/20 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/27+40/20 3/27+80/20 3/54+40/20 9/27+40/20 3/81+40/20 3/27+40/60 15/27+40/20 21/27+40/20