Subtract 63/7 from 18/6
1st number: 3 0/6, 2nd number: 9 0/7
18/6 - 63/7 is -6/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
18/6 = 18 × 7/6 × 7 = 126/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
63/7 = 63 × 6/7 × 6 = 378/42 - Subtract the two like fractions:
126/42 - 378/42 = 126 - 378/42 = -252/42 - After reducing the fraction, the answer is -6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6-63/7 18/12-63/7 18/6-63/14 54/6-63/7 18/6-63/21 90/6-63/7 18/30-63/7 18/6-63/35 18/42-63/7 18/6-63/49