Subtract 9/15 from 20/4
1st number: 5 0/4, 2nd number: 9/15
20/4 - 9/15 is 22/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
20/4 = 20 × 15/4 × 15 = 300/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Subtract the two like fractions:
300/60 - 36/60 = 300 - 36/60 = 264/60 - After reducing the fraction, the answer is 22/5
- In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4-9/15 20/4-18/15 20/8-9/15 20/4-9/30 60/4-9/15 20/4-27/15 20/12-9/15 20/4-9/45 20/4-45/15 20/4-9/75 20/4-63/15 20/28-9/15