Subtract 20/32 from 30/49
30/49 - 20/32 is -5/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 32 is 1568
Next, find the equivalent fraction of both fractional numbers with denominator 1568 - For the 1st fraction, since 49 × 32 = 1568,
30/49 = 30 × 32/49 × 32 = 960/1568 - Likewise, for the 2nd fraction, since 32 × 49 = 1568,
20/32 = 20 × 49/32 × 49 = 980/1568 - Subtract the two like fractions:
960/1568 - 980/1568 = 960 - 980/1568 = -20/1568 - After reducing the fraction, the answer is -5/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49-20/32 30/49-40/32 30/98-20/32 30/49-20/64 90/49-20/32 30/49-60/32 30/49-20/96