Subtract 4/9 from 54/42
1st number: 1 12/42, 2nd number: 4/9
54/42 - 4/9 is 53/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
54/42 = 54 × 3/42 × 3 = 162/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
4/9 = 4 × 14/9 × 14 = 56/126 - Subtract the two like fractions:
162/126 - 56/126 = 162 - 56/126 = 106/126 - After reducing the fraction, the answer is 53/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42-8/9 54/84-4/9 54/42-4/18 54/42-12/9 54/42-4/27 54/42-20/9 54/42-4/45 54/42-28/9 54/42-4/63