Subtract 25/27 from 30/20
1st number: 1 10/20, 2nd number: 25/27
30/20 - 25/27 is 31/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
30/20 = 30 × 27/20 × 27 = 810/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
25/27 = 25 × 20/27 × 20 = 500/540 - Subtract the two like fractions:
810/540 - 500/540 = 810 - 500/540 = 310/540 - After reducing the fraction, the answer is 31/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-25/27 30/20-50/27 30/40-25/27 30/20-25/54 90/20-25/27 30/20-75/27 30/60-25/27 30/20-25/81