Subtract 3/35 from 8/42
8/42 - 3/35 is 11/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
8/42 = 8 × 5/42 × 5 = 40/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
3/35 = 3 × 6/35 × 6 = 18/210 - Subtract the two like fractions:
40/210 - 18/210 = 40 - 18/210 = 22/210 - After reducing the fraction, the answer is 11/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42-3/35 8/42-6/35 8/84-3/35 8/42-3/70 24/42-3/35 8/42-9/35 40/42-3/35 8/42-15/35 56/42-3/35 8/42-21/35