Subtract 2/20 from 16/9
1st number: 1 7/9, 2nd number: 2/20
16/9 - 2/20 is 151/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
16/9 = 16 × 20/9 × 20 = 320/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Subtract the two like fractions:
320/180 - 18/180 = 320 - 18/180 = 302/180 - After reducing the fraction, the answer is 151/90
- In mixed form: 161/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9-2/20 16/9-4/20 16/18-2/20 16/9-2/40 48/9-2/20 16/9-6/20 16/27-2/20 16/9-2/60 80/9-2/20 16/9-10/20 16/45-2/20 16/9-14/20 16/63-2/20