Subtract 63/9 from 3/84
1st number: 3/84, 2nd number: 7 0/9
3/84 - 63/9 is -195/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
3/84 = 3 × 3/84 × 3 = 9/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
63/9 = 63 × 28/9 × 28 = 1764/252 - Subtract the two like fractions:
9/252 - 1764/252 = 9 - 1764/252 = -1755/252 - After reducing the fraction, the answer is -195/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-63/9 3/84-63/18 9/84-63/9 3/84-63/27 15/84-63/9 3/84-63/45 21/84-63/9