Subtract 63/35 from 18/45
1st number: 18/45, 2nd number: 1 28/35
18/45 - 63/35 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
18/45 = 18 × 7/45 × 7 = 126/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
63/35 = 63 × 9/35 × 9 = 567/315 - Subtract the two like fractions:
126/315 - 567/315 = 126 - 567/315 = -441/315 - After reducing the fraction, the answer is -7/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-63/35 18/90-63/35 18/45-63/70 54/45-63/35 90/45-63/35