Subtract 27/8 from 50/42
1st number: 1 8/42, 2nd number: 3 3/8
50/42 - 27/8 is -367/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
50/42 = 50 × 4/42 × 4 = 200/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
27/8 = 27 × 21/8 × 21 = 567/168 - Subtract the two like fractions:
200/168 - 567/168 = 200 - 567/168 = -367/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-54/8 50/84-27/8 50/42-27/16 50/42-81/8 50/42-27/24 50/42-27/40 50/42-27/56