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9 answers

Invert and multiply...

5/31 divided by 15/23
is equivalent to:

5/31 x 23/15

Now you can cancel a 5:
1/31 x 23/3

Multiply across and you get:
23 / 93

Because 23 is prime you know you can't reduce this any further.

The answer is 23 / 93.

2006-10-27 07:49:00 · answer #1 · answered by Puzzling 7 · 3 0

Since 5/31 / 15/23 = 5/31*23/15 , then you can reduce the five to one, and the fifteen to 3 to get 1/31*23/15. Since all the resulting numbers are then prime, the product of these two fractions will be at its lowest form.

2006-10-27 14:50:46 · answer #2 · answered by Wally M 4 · 0 0

Rewrite the problem:
5/31*23/15

Cancel out the 5 and 15:
1/31*23/3=23/93

Check:
(23/23)/(93/3)=1/31
(23/1)/(93/31)=23/3
I hope this helps!

2006-10-27 14:56:18 · answer #3 · answered by Anonymous · 0 0

5/31 / 15/23

Rewrite the first change division to multiplication and take the reciprocal on the second

5/31 x 23/15

= 23/93

2006-10-27 14:50:22 · answer #4 · answered by Up_In_Smoke 2 · 0 1

(5/31) / (15/23)
= (5/31) x (23/15)
= 115 / 465
= 23 / 93

2006-10-27 14:50:52 · answer #5 · answered by Leah H 2 · 1 0

(5/31)/(15/23) = (5/31)(23/5) = 23/31

2006-10-27 14:51:14 · answer #6 · answered by Marcella S 5 · 0 1

23/93

2006-10-28 18:28:28 · answer #7 · answered by ♥KiYa♥ 3 · 0 0

23/93

2006-10-27 15:12:16 · answer #8 · answered by Anonymous · 0 0

(5/21) / (15/23) = (5/21)(23/15) = 23/93
QED

2006-10-27 15:13:22 · answer #9 · answered by CSUFGrad2006 5 · 0 0

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