Subtract 10/70 from 81/2
1st number: 40 1/2, 2nd number: 10/70
81/2 - 10/70 is 565/14.
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,
81/2 = 81 × 35/2 × 35 = 2835/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
10/70 = 10 × 1/70 × 1 = 10/70 - Subtract the two like fractions:
2835/70 - 10/70 = 2835 - 10/70 = 2825/70 - After reducing the fraction, the answer is 565/14
- In mixed form: 405/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2-20/70 81/4-10/70 81/2-30/70 81/6-10/70 81/2-50/70 81/10-10/70 81/14-10/70