Subtract 45/10 from 16/90
1st number: 16/90, 2nd number: 4 5/10
16/90 - 45/10 is -389/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
16/90 = 16 × 1/90 × 1 = 16/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
45/10 = 45 × 9/10 × 9 = 405/90 - Subtract the two like fractions:
16/90 - 405/90 = 16 - 405/90 = -389/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/90-45/10 16/90-90/10 16/90-45/20 48/90-45/10 16/90-45/30 80/90-45/10 16/90-45/50 16/90-45/70