Subtract 9/6 from 42/56
1st number: 42/56, 2nd number: 1 3/6
42/56 - 9/6 is -3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 6 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
42/56 = 42 × 3/56 × 3 = 126/168 - Likewise, for the 2nd fraction, since 6 × 28 = 168,
9/6 = 9 × 28/6 × 28 = 252/168 - Subtract the two like fractions:
126/168 - 252/168 = 126 - 252/168 = -126/168 - After reducing the fraction, the answer is -3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-9/6 42/56-18/6 42/56-9/12 42/56-27/6 42/56-9/18 42/56-45/6 42/56-9/30 42/56-63/6 42/56-9/42