Subtract 35/70 from 2/42
2/42 - 35/70 is -19/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
2/42 = 2 × 5/42 × 5 = 10/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
35/70 = 35 × 3/70 × 3 = 105/210 - Subtract the two like fractions:
10/210 - 105/210 = 10 - 105/210 = -95/210 - After reducing the fraction, the answer is -19/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/42-35/70 2/84-35/70 6/42-35/70 10/42-35/70 14/42-35/70