Subtract 28/7 from 28/35
1st number: 28/35, 2nd number: 4 0/7
28/35 - 28/7 is -16/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
28/35 = 28 × 1/35 × 1 = 28/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
28/7 = 28 × 5/7 × 5 = 140/35 - Subtract the two like fractions:
28/35 - 140/35 = 28 - 140/35 = -112/35 - After reducing the fraction, the answer is -16/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-28/7 28/35-56/7 28/70-28/7 28/35-28/14 84/35-28/7 28/35-84/7 28/35-28/21 28/35-28/35 28/35-28/49