Add 40/27 and 45/20
1st number: 1 13/27, 2nd number: 2 5/20
40/27 + 45/20 is 403/108.
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,
40/27 = 40 × 20/27 × 20 = 800/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
45/20 = 45 × 27/20 × 27 = 1215/540 - Add the two like fractions:
800/540 + 1215/540 = 800 + 1215/540 = 2015/540 - 2015/540 simplified gives 403/108
- So, 40/27 + 45/20 = 403/108
In mixed form: 379/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/27+45/20 40/27+90/20 40/54+45/20 40/27+45/40 40/81+45/20 40/27+45/60