Subtract 20/90 from 14/8
1st number: 1 6/8, 2nd number: 20/90
14/8 - 20/90 is 55/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
14/8 = 14 × 45/8 × 45 = 630/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
20/90 = 20 × 4/90 × 4 = 80/360 - Subtract the two like fractions:
630/360 - 80/360 = 630 - 80/360 = 550/360 - After reducing the fraction, the answer is 55/36
- In mixed form: 119/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-20/90 14/8-40/90 14/16-20/90 42/8-20/90 14/8-60/90 14/24-20/90 70/8-20/90 14/40-20/90 98/8-20/90 14/56-20/90