Subtract 45/42 from 5/9
1st number: 5/9, 2nd number: 1 3/42
5/9 - 45/42 is -65/126.
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,
5/9 = 5 × 14/9 × 14 = 70/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
45/42 = 45 × 3/42 × 3 = 135/126 - Subtract the two like fractions:
70/126 - 135/126 = 70 - 135/126 = -65/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-45/42 5/9-90/42 5/18-45/42 5/9-45/84 15/9-45/42 5/27-45/42 25/9-45/42 5/45-45/42 35/9-45/42 5/63-45/42