Subtract 63/18 from 1/84
1st number: 1/84, 2nd number: 3 9/18
1/84 - 63/18 is -293/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
1/84 = 1 × 3/84 × 3 = 3/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
63/18 = 63 × 14/18 × 14 = 882/252 - Subtract the two like fractions:
3/252 - 882/252 = 3 - 882/252 = -879/252 - After reducing the fraction, the answer is -293/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84-63/18 1/84-63/36 3/84-63/18 1/84-63/54 5/84-63/18 1/84-63/90 7/84-63/18