Add 20/27 and 20/45
20/27 + 20/45 is 32/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
20/27 = 20 × 5/27 × 5 = 100/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
20/45 = 20 × 3/45 × 3 = 60/135 - Add the two like fractions:
100/135 + 60/135 = 100 + 60/135 = 160/135 - 160/135 simplified gives 32/27
- So, 20/27 + 20/45 = 32/27
In mixed form: 15/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/27+20/45 20/27+40/45 20/54+20/45 20/27+20/90 60/27+20/45 20/27+60/45 20/81+20/45