Subtract 21/42 from 49/32
1st number: 1 17/32, 2nd number: 21/42
49/32 - 21/42 is 33/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
49/32 = 49 × 21/32 × 21 = 1029/672 - Likewise, for the 2nd fraction, since 42 × 16 = 672,
21/42 = 21 × 16/42 × 16 = 336/672 - Subtract the two like fractions:
1029/672 - 336/672 = 1029 - 336/672 = 693/672 - After reducing the fraction, the answer is 33/32
- In mixed form: 11/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/32-21/42 49/64-21/42 49/32-21/84 49/32-63/42 49/96-21/42