Subtract 90/16 from 15/10
1st number: 1 5/10, 2nd number: 5 10/16
15/10 - 90/16 is -33/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
15/10 = 15 × 8/10 × 8 = 120/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
90/16 = 90 × 5/16 × 5 = 450/80 - Subtract the two like fractions:
120/80 - 450/80 = 120 - 450/80 = -330/80 - After reducing the fraction, the answer is -33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10-90/16 15/20-90/16 15/10-90/32 45/10-90/16 15/30-90/16 15/10-90/48 75/10-90/16 15/50-90/16 15/10-90/80 15/70-90/16