Subtract 45/9 from 84/4
1st number: 21 0/4, 2nd number: 5 0/9
84/4 - 45/9 is 16/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
84/4 = 84 × 9/4 × 9 = 756/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
45/9 = 45 × 4/9 × 4 = 180/36 - Subtract the two like fractions:
756/36 - 180/36 = 756 - 180/36 = 576/36 - After reducing the fraction, the answer is 16/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-90/9 84/8-45/9 84/4-45/18 84/12-45/9 84/4-45/27 84/20-45/9 84/28-45/9 84/4-45/63