Subtract 4/32 from 21/49
21/49 - 4/32 is 17/56.
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,
21/49 = 21 × 32/49 × 32 = 672/1568 - Likewise, for the 2nd fraction, since 32 × 49 = 1568,
4/32 = 4 × 49/32 × 49 = 196/1568 - Subtract the two like fractions:
672/1568 - 196/1568 = 672 - 196/1568 = 476/1568 - After reducing the fraction, the answer is 17/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49-4/32 21/49-8/32 21/98-4/32 21/49-4/64 63/49-4/32 21/49-12/32 21/49-4/96 21/49-20/32 21/49-28/32