Subtract 16/9 from 40/20
1st number: 2 0/20, 2nd number: 1 7/9
40/20 - 16/9 is 2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
40/20 = 40 × 9/20 × 9 = 360/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
16/9 = 16 × 20/9 × 20 = 320/180 - Subtract the two like fractions:
360/180 - 320/180 = 360 - 320/180 = 40/180 - After reducing the fraction, the answer is 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-16/9 40/20-32/9 40/20-16/18 40/20-48/9 40/60-16/9 40/20-16/27 40/20-80/9 40/20-16/45 40/20-16/63