Subtract 28/32 from 42/2
1st number: 21 0/2, 2nd number: 28/32
42/2 - 28/32 is 161/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 32 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 2 × 16 = 32,
42/2 = 42 × 16/2 × 16 = 672/32 - Likewise, for the 2nd fraction, since 32 × 1 = 32,
28/32 = 28 × 1/32 × 1 = 28/32 - Subtract the two like fractions:
672/32 - 28/32 = 672 - 28/32 = 644/32 - After reducing the fraction, the answer is 161/8
- In mixed form: 201/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-28/32 42/2-56/32 42/4-28/32 42/2-28/64 42/2-84/32 42/6-28/32 42/2-28/96 42/10-28/32 42/14-28/32