Subtract 20/25 from 2/72
2/72 - 20/25 is -139/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 25 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
2/72 = 2 × 25/72 × 25 = 50/1800 - Likewise, for the 2nd fraction, since 25 × 72 = 1800,
20/25 = 20 × 72/25 × 72 = 1440/1800 - Subtract the two like fractions:
50/1800 - 1440/1800 = 50 - 1440/1800 = -1390/1800 - After reducing the fraction, the answer is -139/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72-20/25 2/72-40/25 2/72-20/50 6/72-20/25 2/72-60/25 2/72-20/75 10/72-20/25 14/72-20/25