Subtract 9/45 from 4/28
4/28 - 9/45 is -2/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
4/28 = 4 × 45/28 × 45 = 180/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
9/45 = 9 × 28/45 × 28 = 252/1260 - Subtract the two like fractions:
180/1260 - 252/1260 = 180 - 252/1260 = -72/1260 - After reducing the fraction, the answer is -2/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28-9/45 4/28-18/45 4/56-9/45 4/28-9/90 12/28-9/45 4/28-27/45 4/84-9/45 20/28-9/45 4/28-63/45