Subtract 35/8 from 1/42
1st number: 1/42, 2nd number: 4 3/8
1/42 - 35/8 is -731/168.
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,
1/42 = 1 × 4/42 × 4 = 4/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
35/8 = 35 × 21/8 × 21 = 735/168 - Subtract the two like fractions:
4/168 - 735/168 = 4 - 735/168 = -731/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-35/8 1/42-70/8 1/84-35/8 1/42-35/16 3/42-35/8 1/42-35/24 5/42-35/8 1/42-35/40 7/42-35/8 1/42-35/56