If the denominator (bottom number) divides into the whole number:
Divide by the denominator, then multiply by the numerator.
Example 35 * 4/7: start with 35 and divide it by 7 and you get 5. Now take that number and multiply by 4. 5 * 4 = 20. Done.
Here's the link to the entire lesson: • Mastering Fractions: Reducing, Adding, and...