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Topic: dropped topics
Replies: 0

 Eileen Schoaff Posts: 39 Registered: 12/3/04
dropped topics
Posted: Jun 20, 1995 9:51 PM

Why do we need to teach multiplication and division of
fractions?

This was the question from sross@whale.st.usm.edu.

with numerators and denominators or all fractions? Our base ten system
makes working with decimals easier because of the place value. Not
all fractions are base 10, however. In fact, there are an infinite
number of fractions that are not base 10. Not teaching operations using
fractions written as 4/7 (numerator and denominator format) eliminates
a lot of fractions. Why not eliminate all units digits and only deal
with tens? (Or eliminate all pennies -- which makes economic sense.)

This means we can no longer take 1/3 or 1/7 of anything. Does this
make sense? Are we going to restrict our world to fractions that
convert to terminating decimals?
Eileen Schoaff
Buff State (NOT a nudist school)