for example...
-5/7 DIVIDED BY 7/5
(that is a negetive 5/7)
I need a fraction answer
2007-09-25 17:29:16 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Multiplying by the inverse or reciprocal is the easiest way to accomplish this.
Simply take -5/7 and multiply it by 5/7 (that is the reciprocal).
This will give you -25/49
2007-09-25 17:35:04 · answer #1 · answered by lazor_braids 2 · 1⤊ 0⤋
just multiply the numerator by the numerator of the second fraction and then multiply the two denominators:
- 5/7 divided by 7/5
will be
-5/7 * 5/7
5/7 is the reciprocal of 7/5
so -5*5 = -25
and 7*7 = 49
so the answer is
= - 25/49
it doesnt matter where you put the negative sign in the fraction, (whether it is on the numerator or the denominator) as long as you do not miss it out.
2007-09-26 00:39:08 · answer #2 · answered by Autisteek 2 · 0⤊ 0⤋
to MULTIPLY fractions, you multiply the numerators together to form the numerator of the answer, and multiply the denominators together to form the denominator of the answer
to DIVIDE fractions, invert the divisor fraction and multiply.
in your example
-5/7 divided by 7/5 =
-5/7 multiplied by 5/7 =
(-5 * 5)/(7*7)= -25/49
2007-09-26 00:35:53 · answer #3 · answered by Anonymous · 1⤊ 0⤋
I was always told "To invert and MULTIPLY".
e.g. - 5/7 DIVIDED BY 7/5
becomes -5/7 X 5/7
which is = -25/49
.
2007-09-26 00:38:25 · answer #4 · answered by mountie 3 · 0⤊ 0⤋
-5/7 divided by 7/5
=> -5/7*5/7(as it is divide sign so i interchanged)
=>-25/49(answer)
2007-09-26 00:39:11 · answer #5 · answered by PINTOO 2 · 0⤊ 0⤋
use the law of the sandwich
(-5/7)/(7/5) = (-5*5)/(7*7)
the highest multiples the lowest an the middle ones multiply them for each other
2007-09-26 00:34:52 · answer #6 · answered by originalquene 4 · 0⤊ 1⤋
-5 times 5 is -25 over
-7 times 7 is -49 so you get -25/-49 I think
2007-09-26 00:37:59 · answer #7 · answered by I Love Jesus 5 · 0⤊ 1⤋
-5*7= -35
7*5=35
So the answer is -35 over 35
2007-09-26 00:34:34 · answer #8 · answered by phrog_1975 3 · 0⤊ 2⤋