Subtract 10/32 from 28/42
28/42 - 10/32 is 17/48.
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,
28/42 = 28 × 16/42 × 16 = 448/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
10/32 = 10 × 21/32 × 21 = 210/672 - Subtract the two like fractions:
448/672 - 210/672 = 448 - 210/672 = 238/672 - After reducing the fraction, the answer is 17/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-10/32 28/42-20/32 28/84-10/32 28/42-10/64 84/42-10/32 28/42-30/32 28/42-10/96 28/42-50/32 28/42-70/32