Subtract 28/30 from 9/32
9/32 - 28/30 is -313/480.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 30 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 32 × 15 = 480,
9/32 = 9 × 15/32 × 15 = 135/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
28/30 = 28 × 16/30 × 16 = 448/480 - Subtract the two like fractions:
135/480 - 448/480 = 135 - 448/480 = -313/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/32-28/30 9/32-56/30 9/64-28/30 9/32-28/60 27/32-28/30 9/32-84/30 9/96-28/30 9/32-28/90 45/32-28/30 63/32-28/30