Subtract 28/35 from 3/63
3/63 - 28/35 is -79/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
3/63 = 3 × 5/63 × 5 = 15/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
28/35 = 28 × 9/35 × 9 = 252/315 - Subtract the two like fractions:
15/315 - 252/315 = 15 - 252/315 = -237/315 - After reducing the fraction, the answer is -79/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/63-28/35 3/63-56/35 3/63-28/70 9/63-28/35 3/63-84/35 15/63-28/35 21/63-28/35