Subtract 8/3 from 42/28
1st number: 1 14/28, 2nd number: 2 2/3
42/28 - 8/3 is -7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
42/28 = 42 × 3/28 × 3 = 126/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
8/3 = 8 × 28/3 × 28 = 224/84 - Subtract the two like fractions:
126/84 - 224/84 = 126 - 224/84 = -98/84 - After reducing the fraction, the answer is -7/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-8/3 42/28-16/3 42/56-8/3 42/28-8/6 42/28-24/3 42/84-8/3 42/28-8/9 42/28-40/3 42/28-8/15 42/28-56/3 42/28-8/21