Subtract 4/14 from 45/72
45/72 - 4/14 is 19/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
4/14 = 4 × 36/14 × 36 = 144/504 - Subtract the two like fractions:
315/504 - 144/504 = 315 - 144/504 = 171/504 - After reducing the fraction, the answer is 19/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-4/14 45/72-8/14 45/72-4/28 45/72-12/14 45/72-4/42 45/72-20/14 45/72-4/70 45/72-28/14 45/72-4/98