Subtract 10/16 from 28/90
28/90 - 10/16 is -113/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
28/90 = 28 × 8/90 × 8 = 224/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
10/16 = 10 × 45/16 × 45 = 450/720 - Subtract the two like fractions:
224/720 - 450/720 = 224 - 450/720 = -226/720 - After reducing the fraction, the answer is -113/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-10/16 28/90-20/16 28/90-10/32 84/90-10/16 28/90-30/16 28/90-10/48 28/90-50/16 28/90-10/80 28/90-70/16