Subtract 30/27 from 20/8
1st number: 2 4/8, 2nd number: 1 3/27
20/8 - 30/27 is 25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
20/8 = 20 × 27/8 × 27 = 540/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
30/27 = 30 × 8/27 × 8 = 240/216 - Subtract the two like fractions:
540/216 - 240/216 = 540 - 240/216 = 300/216 - After reducing the fraction, the answer is 25/18
- In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8-30/27 20/8-60/27 20/16-30/27 20/8-30/54 60/8-30/27 20/8-90/27 20/24-30/27 20/8-30/81 20/40-30/27 20/56-30/27