Subtract 27/35 from 45/63
45/63 - 27/35 is -2/35.
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,
45/63 = 45 × 5/63 × 5 = 225/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
27/35 = 27 × 9/35 × 9 = 243/315 - Subtract the two like fractions:
225/315 - 243/315 = 225 - 243/315 = -18/315 - 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: 90/63-27/35 45/63-54/35 45/63-27/70 45/63-81/35