Subtract 45/9 from 28/35
1st number: 28/35, 2nd number: 5 0/9
28/35 - 45/9 is -21/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
28/35 = 28 × 9/35 × 9 = 252/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
45/9 = 45 × 35/9 × 35 = 1575/315 - Subtract the two like fractions:
252/315 - 1575/315 = 252 - 1575/315 = -1323/315 - After reducing the fraction, the answer is -21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-45/9 28/35-90/9 28/70-45/9 28/35-45/18 84/35-45/9 28/35-45/27 28/35-45/63