Subtract 10/16 from 20/9
1st number: 2 2/9, 2nd number: 10/16
20/9 - 10/16 is 115/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
20/9 = 20 × 16/9 × 16 = 320/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
10/16 = 10 × 9/16 × 9 = 90/144 - Subtract the two like fractions:
320/144 - 90/144 = 320 - 90/144 = 230/144 - After reducing the fraction, the answer is 115/72
- In mixed form: 143/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9-10/16 20/9-20/16 20/18-10/16 20/9-10/32 60/9-10/16 20/9-30/16 20/27-10/16 20/9-10/48 20/9-50/16 20/45-10/16 20/9-10/80 20/9-70/16 20/63-10/16