Subtract 25/9 from 20/16
1st number: 1 4/16, 2nd number: 2 7/9
20/16 - 25/9 is -55/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
25/9 = 25 × 16/9 × 16 = 400/144 - Subtract the two like fractions:
180/144 - 400/144 = 180 - 400/144 = -220/144 - After reducing the fraction, the answer is -55/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16-25/9 20/16-50/9 20/32-25/9 20/16-25/18 60/16-25/9 20/16-75/9 20/48-25/9 20/16-25/27 20/80-25/9 20/16-25/45 20/16-25/63