How do you evaluate 213112?

2 Answers
Mar 13, 2018

56

Explanation:

Step 1: You have to Multiply the 3 and the 2 together and then add the 1 and that would all be over 3. Then you get

213=2×3+13=73

Step 2: You do the same thing which is 2 times 1 and then add 1 and that would be all over 2. Then you get

112=1×2+12=32

Step 3: Combine together as

7332

Next, you have to have a common denominator of 6. 73 times 2 both top and bottom. Then 32 is going to be times 3 both top and bottom.

73×22=7×23×2

32×33=3×32×3

Next, multiply top and bottom fractions individually, which gets to be

14696=1496=56

Mar 13, 2018

56

Explanation:

First, change the mixed fractions into improper fractions by multiplying the whole number by the denominator and then adding the numerator.

213=2×3+13=73

112=1×2+12=32

Next, find a common denominator and then multiply the top and the bottom by the same number.

73×22=146

32×33=96

Subtract the numerators.

149=5

Make sure to keep the denominator.

56