Subtract 28/35 from 3/4
3/4 - 28/35 is -1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
3/4 = 3 × 35/4 × 35 = 105/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
28/35 = 28 × 4/35 × 4 = 112/140 - Subtract the two like fractions:
105/140 - 112/140 = 105 - 112/140 = -7/140 - After reducing the fraction, the answer is -1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4-28/35 3/4-56/35 3/8-28/35 3/4-28/70 9/4-28/35 3/4-84/35 3/12-28/35 15/4-28/35 3/20-28/35 21/4-28/35 3/28-28/35