Subtract 10/16 from 90/5
1st number: 18 0/5, 2nd number: 10/16
90/5 - 10/16 is 139/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
90/5 = 90 × 16/5 × 16 = 1440/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
10/16 = 10 × 5/16 × 5 = 50/80 - Subtract the two like fractions:
1440/80 - 50/80 = 1440 - 50/80 = 1390/80 - After reducing the fraction, the answer is 139/8
- In mixed form: 173/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-20/16 90/10-10/16 90/5-10/32 90/5-30/16 90/15-10/16 90/5-10/48 90/5-50/16 90/25-10/16 90/5-10/80 90/5-70/16 90/35-10/16