Add 45/27 and 8/20
1st number: 1 18/27, 2nd number: 8/20
45/27 + 8/20 is 31/15.
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,
45/27 = 45 × 20/27 × 20 = 900/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
8/20 = 8 × 27/20 × 27 = 216/540 - Add the two like fractions:
900/540 + 216/540 = 900 + 216/540 = 1116/540 - 1116/540 simplified gives 31/15
- So, 45/27 + 8/20 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+8/20 45/27+16/20 45/54+8/20 45/27+8/40 45/27+24/20 45/81+8/20 45/27+8/60 45/27+40/20 45/27+56/20