Subtract 90/32 from 28/10
1st number: 2 8/10, 2nd number: 2 26/32
28/10 - 90/32 is -1/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 10 × 16 = 160,
28/10 = 28 × 16/10 × 16 = 448/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160 - Subtract the two like fractions:
448/160 - 450/160 = 448 - 450/160 = -2/160 - After reducing the fraction, the answer is -1/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10-90/32 28/20-90/32 28/10-90/64 84/10-90/32 28/30-90/32 28/10-90/96 28/50-90/32 28/70-90/32