Subtract 9/45 from 9/16
9/16 - 9/45 is 29/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
9/16 = 9 × 45/16 × 45 = 405/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
9/45 = 9 × 16/45 × 16 = 144/720 - Subtract the two like fractions:
405/720 - 144/720 = 405 - 144/720 = 261/720 - After reducing the fraction, the answer is 29/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/16-9/45 9/16-18/45 9/32-9/45 9/16-9/90 27/16-9/45 9/16-27/45 9/48-9/45 45/16-9/45 9/80-9/45 63/16-9/45 9/16-63/45