Subtract 35/63 from 18/84
18/84 - 35/63 is -43/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
35/63 = 35 × 4/63 × 4 = 140/252 - Subtract the two like fractions:
54/252 - 140/252 = 54 - 140/252 = -86/252 - After reducing the fraction, the answer is -43/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84-35/63 18/84-70/63 54/84-35/63 90/84-35/63