Subtract 90/70 from 50/2
1st number: 25 0/2, 2nd number: 1 20/70
50/2 - 90/70 is 166/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
50/2 = 50 × 35/2 × 35 = 1750/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Subtract the two like fractions:
1750/70 - 90/70 = 1750 - 90/70 = 1660/70 - After reducing the fraction, the answer is 166/7
- In mixed form: 235/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/4-90/70 50/6-90/70 50/10-90/70 50/14-90/70