Subtract 14/90 from 20/5
1st number: 4 0/5, 2nd number: 14/90
20/5 - 14/90 is 173/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
20/5 = 20 × 18/5 × 18 = 360/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
14/90 = 14 × 1/90 × 1 = 14/90 - Subtract the two like fractions:
360/90 - 14/90 = 360 - 14/90 = 346/90 - After reducing the fraction, the answer is 173/45
- In mixed form: 338/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-14/90 20/5-28/90 20/10-14/90 60/5-14/90 20/5-42/90 20/15-14/90 20/5-70/90 20/25-14/90 20/5-98/90 20/35-14/90