Subtract 21/50 from 12/27
12/27 - 21/50 is 11/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 50 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 27 × 50 = 1350,
12/27 = 12 × 50/27 × 50 = 600/1350 - Likewise, for the 2nd fraction, since 50 × 27 = 1350,
21/50 = 21 × 27/50 × 27 = 567/1350 - Subtract the two like fractions:
600/1350 - 567/1350 = 600 - 567/1350 = 33/1350 - After reducing the fraction, the answer is 11/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27-21/50 12/27-42/50 12/54-21/50 36/27-21/50 12/27-63/50 12/81-21/50 60/27-21/50 84/27-21/50