Subtract 5/35 from 28/42
28/42 - 5/35 is 11/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
5/35 = 5 × 6/35 × 6 = 30/210 - Subtract the two like fractions:
140/210 - 30/210 = 140 - 30/210 = 110/210 - After reducing the fraction, the answer is 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-5/35 28/42-10/35 28/84-5/35 28/42-5/70 84/42-5/35 28/42-15/35 28/42-25/35