Subtract 9/14 from 28/45
28/45 - 9/14 is -13/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
9/14 = 9 × 45/14 × 45 = 405/630 - Subtract the two like fractions:
392/630 - 405/630 = 392 - 405/630 = -13/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-9/14 28/45-18/14 28/90-9/14 28/45-9/28 84/45-9/14 28/45-27/14 28/45-9/42 28/45-45/14 28/45-9/70 28/45-63/14 28/45-9/98