a) Describe a series of steps that could be used to write fractions like 3/4, 2/5, 5/6, 11/8, 3/10, 19/15, 7/20, 8/25, 9/40, or 17/50 in decimal form. Make up your own fraction after these ten have been used. Do not use the same fraction as any other classmate. Using a calculator is not an acceptable answer.
b) Why is it preferable to not use the word "and" when reading a number like 457?