Subtract 54/42 from 63/9
1st number: 7 0/9, 2nd number: 1 12/42
63/9 - 54/42 is 40/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
63/9 = 63 × 14/9 × 14 = 882/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
54/42 = 54 × 3/42 × 3 = 162/126 - Subtract the two like fractions:
882/126 - 162/126 = 882 - 162/126 = 720/126 - After reducing the fraction, the answer is 40/7
- In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18-54/42 63/9-54/84 63/27-54/42 63/45-54/42