Subtract 42/16 from 4/12
1st number: 4/12, 2nd number: 2 10/16
4/12 - 42/16 is -55/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
4/12 = 4 × 4/12 × 4 = 16/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
42/16 = 42 × 3/16 × 3 = 126/48 - Subtract the two like fractions:
16/48 - 126/48 = 16 - 126/48 = -110/48 - After reducing the fraction, the answer is -55/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12-42/16 4/12-84/16 4/24-42/16 4/12-42/32 4/36-42/16 4/12-42/48 20/12-42/16 4/60-42/16 4/12-42/80 28/12-42/16 4/84-42/16