Subtract 70/42 from 2/70
1st number: 2/70, 2nd number: 1 28/42
2/70 - 70/42 is -172/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
2/70 = 2 × 3/70 × 3 = 6/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Subtract the two like fractions:
6/210 - 350/210 = 6 - 350/210 = -344/210 - After reducing the fraction, the answer is -172/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70-70/42 2/70-70/84 6/70-70/42 10/70-70/42 14/70-70/42