Subtract 63/7 from 18/4
1st number: 4 2/4, 2nd number: 9 0/7
18/4 - 63/7 is -9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
63/7 = 63 × 4/7 × 4 = 252/28 - Subtract the two like fractions:
126/28 - 252/28 = 126 - 252/28 = -126/28 - After reducing the fraction, the answer is -9/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-63/7 18/8-63/7 18/4-63/14 54/4-63/7 18/12-63/7 18/4-63/21 90/4-63/7 18/20-63/7 18/4-63/35 18/28-63/7 18/4-63/49