Subtract 45/84 from 8/4
1st number: 2 0/4, 2nd number: 45/84
8/4 - 45/84 is 41/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
8/4 = 8 × 21/4 × 21 = 168/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
45/84 = 45 × 1/84 × 1 = 45/84 - Subtract the two like fractions:
168/84 - 45/84 = 168 - 45/84 = 123/84 - After reducing the fraction, the answer is 41/28
- In mixed form: 113/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-45/84 8/4-90/84 24/4-45/84 8/12-45/84 40/4-45/84 8/20-45/84 56/4-45/84 8/28-45/84