Subtract 40/70 from 75/3
1st number: 25 0/3, 2nd number: 40/70
75/3 - 40/70 is 171/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
75/3 = 75 × 70/3 × 70 = 5250/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
40/70 = 40 × 3/70 × 3 = 120/210 - Subtract the two like fractions:
5250/210 - 120/210 = 5250 - 120/210 = 5130/210 - After reducing the fraction, the answer is 171/7
- In mixed form: 243/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/3-80/70 75/6-40/70 75/9-40/70 75/15-40/70 75/21-40/70