Subtract 12/50 from 1/72
1/72 - 12/50 is -407/1800.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
1/72 = 1 × 25/72 × 25 = 25/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
12/50 = 12 × 36/50 × 36 = 432/1800 - Subtract the two like fractions:
25/1800 - 432/1800 = 25 - 432/1800 = -407/1800
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/72-12/50 1/72-24/50 3/72-12/50 1/72-36/50 5/72-12/50 1/72-60/50 7/72-12/50 1/72-84/50