85:143=
To solve the problem, we'll follow these steps:
- Step 1: Convert the mixed number, 143, into an improper fraction.
- Step 2: Rewrite the division as a multiplication by the reciprocal of the improper fraction.
- Step 3: Perform the multiplication and simplify the resulting fraction.
Now, let's work through each step:
Step 1: Convert the mixed number. 143 can be converted as follows:
The whole number 1 times the denominator 4 plus the numerator 3 gives 7.
Thus, 143=47.
Step 2: Divide 85 by 47 by multiplying by its reciprocal:
85÷47=85×74.
Step 3: Multiply across the numerators and the denominators:
8×75×4=5620.
Simplify 5620 by finding the greatest common divisor (GCD), which is 4:
5620=56÷420÷4=145.
Therefore, the solution to the problem is 145.