Subtract 21/16 from 14/45
1st number: 14/45, 2nd number: 1 5/16
14/45 - 21/16 is -721/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
14/45 = 14 × 16/45 × 16 = 224/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Subtract the two like fractions:
224/720 - 945/720 = 224 - 945/720 = -721/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/45-21/16 14/45-42/16 14/90-21/16 14/45-21/32 42/45-21/16 14/45-63/16 14/45-21/48 70/45-21/16 14/45-21/80 98/45-21/16