Subtract 28/42 from 70/35
1st number: 2 0/35, 2nd number: 28/42
70/35 - 28/42 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
70/35 = 70 × 6/35 × 6 = 420/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Subtract the two like fractions:
420/210 - 140/210 = 420 - 140/210 = 280/210 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/35-56/42 70/35-28/84 70/35-84/42