Subtract 1/32 from 8/42
8/42 - 1/32 is 107/672.
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,
8/42 = 8 × 16/42 × 16 = 128/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
1/32 = 1 × 21/32 × 21 = 21/672 - Subtract the two like fractions:
128/672 - 21/672 = 128 - 21/672 = 107/672
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42-1/32 8/42-2/32 8/84-1/32 8/42-1/64 24/42-1/32 8/42-3/32 8/42-1/96 40/42-1/32 8/42-5/32 56/42-1/32 8/42-7/32