Subtract 9/36 from 4/70
4/70 - 9/36 is -27/140.
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,
4/70 = 4 × 18/70 × 18 = 72/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
9/36 = 9 × 35/36 × 35 = 315/1260 - Subtract the two like fractions:
72/1260 - 315/1260 = 72 - 315/1260 = -243/1260 - After reducing the fraction, the answer is -27/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70-9/36 4/70-18/36 4/70-9/72 12/70-9/36 4/70-27/36 20/70-9/36 4/70-45/36 28/70-9/36 4/70-63/36