Subtract 27/50 from 3/7
3/7 - 27/50 is -39/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 7 × 50 = 350,
3/7 = 3 × 50/7 × 50 = 150/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
27/50 = 27 × 7/50 × 7 = 189/350 - Subtract the two like fractions:
150/350 - 189/350 = 150 - 189/350 = -39/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/7-27/50 3/7-54/50 3/14-27/50 9/7-27/50 3/7-81/50 3/21-27/50 15/7-27/50 3/35-27/50 21/7-27/50 3/49-27/50