Subtract 5/21 from 45/5
1st number: 9 0/5, 2nd number: 5/21
45/5 - 5/21 is 184/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
45/5 = 45 × 21/5 × 21 = 945/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
5/21 = 5 × 5/21 × 5 = 25/105 - Subtract the two like fractions:
945/105 - 25/105 = 945 - 25/105 = 920/105 - After reducing the fraction, the answer is 184/21
- In mixed form: 816/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-5/21 45/5-10/21 45/10-5/21 45/5-5/42 45/5-15/21 45/15-5/21 45/5-5/63 45/5-25/21 45/25-5/21 45/5-35/21 45/35-5/21