Subtract 36/70 from 1/28
1/28 - 36/70 is -67/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
1/28 = 1 × 5/28 × 5 = 5/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
36/70 = 36 × 2/70 × 2 = 72/140 - Subtract the two like fractions:
5/140 - 72/140 = 5 - 72/140 = -67/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28-36/70 1/28-72/70 1/56-36/70 3/28-36/70 1/84-36/70 5/28-36/70 7/28-36/70