Subtract 15/12 from 42/32
1st number: 1 10/32, 2nd number: 1 3/12
42/32 - 15/12 is 1/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 12 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 32 × 3 = 96,
42/32 = 42 × 3/32 × 3 = 126/96 - Likewise, for the 2nd fraction, since 12 × 8 = 96,
15/12 = 15 × 8/12 × 8 = 120/96 - Subtract the two like fractions:
126/96 - 120/96 = 126 - 120/96 = 6/96 - After reducing the fraction, the answer is 1/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/32-15/12 42/32-30/12 42/64-15/12 42/32-15/24 42/32-45/12 42/96-15/12 42/32-15/36 42/32-75/12 42/32-15/60 42/32-15/84