Subtract 20/18 from 32/8
1st number: 4 0/8, 2nd number: 1 2/18
32/8 - 20/18 is 26/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
32/8 = 32 × 9/8 × 9 = 288/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
20/18 = 20 × 4/18 × 4 = 80/72 - Subtract the two like fractions:
288/72 - 80/72 = 288 - 80/72 = 208/72 - After reducing the fraction, the answer is 26/9
- In mixed form: 28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/8-20/18 32/8-40/18 32/16-20/18 32/8-20/36 96/8-20/18 32/8-60/18 32/24-20/18 32/8-20/54 32/40-20/18 32/8-20/90 32/56-20/18