Subtract 45/12 from 56/16
1st number: 3 8/16, 2nd number: 3 9/12
56/16 - 45/12 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
56/16 = 56 × 3/16 × 3 = 168/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
45/12 = 45 × 4/12 × 4 = 180/48 - Subtract the two like fractions:
168/48 - 180/48 = 168 - 180/48 = -12/48 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16-90/12 56/32-45/12 56/16-45/24 56/48-45/12 56/16-45/36 56/80-45/12 56/16-45/60 56/16-45/84