Subtract 14/30 from 21/32
21/32 - 14/30 is 91/480.
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,
21/32 = 21 × 15/32 × 15 = 315/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
14/30 = 14 × 16/30 × 16 = 224/480 - Subtract the two like fractions:
315/480 - 224/480 = 315 - 224/480 = 91/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32-14/30 21/32-28/30 21/64-14/30 21/32-14/60 63/32-14/30 21/32-42/30 21/96-14/30 21/32-14/90 21/32-70/30 21/32-98/30