Subtract 7/12 from 42/8
1st number: 5 2/8, 2nd number: 7/12
42/8 - 7/12 is 14/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
42/8 = 42 × 3/8 × 3 = 126/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
7/12 = 7 × 2/12 × 2 = 14/24 - Subtract the two like fractions:
126/24 - 14/24 = 126 - 14/24 = 112/24 - After reducing the fraction, the answer is 14/3
- In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-7/12 42/8-14/12 42/16-7/12 42/8-7/24 42/8-21/12 42/24-7/12 42/8-7/36 42/8-35/12 42/40-7/12 42/8-7/60 42/8-49/12 42/56-7/12 42/8-7/84