Subtract 28/70 from 1/36
1/36 - 28/70 is -67/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
1/36 = 1 × 35/36 × 35 = 35/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
28/70 = 28 × 18/70 × 18 = 504/1260 - Subtract the two like fractions:
35/1260 - 504/1260 = 35 - 504/1260 = -469/1260 - After reducing the fraction, the answer is -67/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/36-28/70 1/36-56/70 1/72-28/70 3/36-28/70 1/36-84/70 5/36-28/70 7/36-28/70