Subtract 1/32 from 12/42
12/42 - 1/32 is 57/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
12/42 = 12 × 16/42 × 16 = 192/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
1/32 = 1 × 21/32 × 21 = 21/672 - Subtract the two like fractions:
192/672 - 21/672 = 192 - 21/672 = 171/672 - After reducing the fraction, the answer is 57/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42-1/32 12/42-2/32 12/84-1/32 12/42-1/64 36/42-1/32 12/42-3/32 12/42-1/96 60/42-1/32 12/42-5/32 84/42-1/32 12/42-7/32