Predict the result
Multiply two and five eighths by seven and one third.

Set up the model
Convert mixed numbers to improper fractions first.
Then multiply and simplify.

Work the example
Multiply twenty one eighths by twenty two thirds.
The result is nineteen and one fourth.

Check the result
Now divide one and seven ninths by four and two thirds.
Take eight seconds to think before the answer appears.
[Eight-second silent pause to work; the answer remains hidden.]
Multiply by the reciprocal; the result is eight twenty firsts.

Interpret the result
Use a reciprocal for division, and keep mixed-number addition separate from multiplication.