Subtract 15/36 from 6/70
6/70 - 15/36 is -139/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
6/70 = 6 × 18/70 × 18 = 108/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
15/36 = 15 × 35/36 × 35 = 525/1260 - Subtract the two like fractions:
108/1260 - 525/1260 = 108 - 525/1260 = -417/1260 - After reducing the fraction, the answer is -139/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70-15/36 6/70-30/36 6/70-15/72 18/70-15/36 6/70-45/36 30/70-15/36 6/70-75/36 42/70-15/36