Subtract 16/10 from 15/90
1st number: 15/90, 2nd number: 1 6/10
15/90 - 16/10 is -43/30.
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,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
16/10 = 16 × 9/10 × 9 = 144/90 - Subtract the two like fractions:
15/90 - 144/90 = 15 - 144/90 = -129/90 - After reducing the fraction, the answer is -43/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90-16/10 15/90-32/10 15/90-16/20 45/90-16/10 15/90-48/10 15/90-16/30 75/90-16/10 15/90-80/10 15/90-16/50 15/90-16/70