Subtract 2/8 from 35/42
35/42 - 2/8 is 7/12.
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,
35/42 = 35 × 4/42 × 4 = 140/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
2/8 = 2 × 21/8 × 21 = 42/168 - Subtract the two like fractions:
140/168 - 42/168 = 140 - 42/168 = 98/168 - After reducing the fraction, the answer is 7/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-2/8 35/42-4/8 35/84-2/8 35/42-2/16 35/42-6/8 35/42-2/24 35/42-10/8 35/42-2/40 35/42-14/8 35/42-2/56