Subtract 7/50 from 21/36
21/36 - 7/50 is 133/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 50 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
21/36 = 21 × 25/36 × 25 = 525/900 - Likewise, for the 2nd fraction, since 50 × 18 = 900,
7/50 = 7 × 18/50 × 18 = 126/900 - Subtract the two like fractions:
525/900 - 126/900 = 525 - 126/900 = 399/900 - After reducing the fraction, the answer is 133/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36-7/50 21/36-14/50 21/72-7/50 63/36-7/50 21/36-21/50 21/36-35/50 21/36-49/50