Posted by Dawn on .
1 divided by 7/2? I tried this on my calculator and got a demical, my teacher want's it in fraction form though.

Math 
Reiny,
1 รท (7/2)
= 1 x (2/7)
= 2/7 
Math 
Ms. Sue,
1 / (7/2) = 1 * (2/7) = 2/7

Math 
PsyDAG,
Dividing by a fraction is that same as multiplying by the inverse of that fraction.
(1)/(7/2) = (1)(2/7) = 2/7 
Math 
Dawn,
Inverse means the recpitile right? so like if it was 15, it'd be 15/1 x (3/4ths) which 3/4ths is actually 4/3s? so 15/1x4/3

Math 
Ms. Sue,
Inverse means the reciprocal.
You only use the reciprocal when you divide.
15 / (3/4) = 15/1 * (4/3) 
Math 
Dawn,
Ah, okay. Thank you.

Math 
Ms. Sue,
You're welcome.