Subtract 21/72 from 2/50
2/50 - 21/72 is -151/600.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 50 × 36 = 1800,
2/50 = 2 × 36/50 × 36 = 72/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
21/72 = 21 × 25/72 × 25 = 525/1800 - Subtract the two like fractions:
72/1800 - 525/1800 = 72 - 525/1800 = -453/1800 - After reducing the fraction, the answer is -151/600
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/50-21/72 2/50-42/72 6/50-21/72 2/50-63/72 10/50-21/72 14/50-21/72