Subtract 9/45 from 8/4
1st number: 2 0/4, 2nd number: 9/45
8/4 - 9/45 is 9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
8/4 = 8 × 45/4 × 45 = 360/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
9/45 = 9 × 4/45 × 4 = 36/180 - Subtract the two like fractions:
360/180 - 36/180 = 360 - 36/180 = 324/180 - After reducing the fraction, the answer is 9/5
- In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-9/45 8/4-18/45 8/4-9/90 24/4-9/45 8/4-27/45 8/12-9/45 40/4-9/45 8/20-9/45 56/4-9/45 8/4-63/45 8/28-9/45