Add 30/27 and 75/20
1st number: 1 3/27, 2nd number: 3 15/20
30/27 + 75/20 is 175/36.
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,
30/27 = 30 × 20/27 × 20 = 600/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
75/20 = 75 × 27/20 × 27 = 2025/540 - Add the two like fractions:
600/540 + 2025/540 = 600 + 2025/540 = 2625/540 - 2625/540 simplified gives 175/36
- So, 30/27 + 75/20 = 175/36
In mixed form: 431/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/27+75/20 30/54+75/20 30/27+75/40 90/27+75/20 30/81+75/20 30/27+75/60