Subtract 15/70 from 1/2
1/2 - 15/70 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
1/2 = 1 × 35/2 × 35 = 35/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Subtract the two like fractions:
35/70 - 15/70 = 35 - 15/70 = 20/70 - After reducing the fraction, the answer is 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2-30/70 1/4-15/70 3/2-15/70 1/2-45/70 1/6-15/70 5/2-15/70 1/2-75/70 1/10-15/70 7/2-15/70 1/14-15/70