Add 40/20 and 30/54
1st number: 2 0/20, 2nd number: 30/54
40/20 + 30/54 is 23/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
40/20 = 40 × 27/20 × 27 = 1080/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
30/54 = 30 × 10/54 × 10 = 300/540 - Add the two like fractions:
1080/540 + 300/540 = 1080 + 300/540 = 1380/540 - 1380/540 simplified gives 23/9
- So, 40/20 + 30/54 = 23/9
In mixed form: 25/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+30/54 40/20+60/54 40/20+90/54 40/60+30/54