Question

the product of two rational number is 5 by 6 one of them is minus 15 by 16 find the other

Answer 1

let one rational number be x
other number=-15/16

according to the question

x*-15/16=5/6
-15x*6=5*16
-90x=80
x=80/-90
x=-8/9

hope it helps you

Answer 2

Solution:
Let the second rational number be 'x'
● (-15/16) (x) = 5/6
● x = 5/6 × -16/15 ( reciprocal of -15/16 )
● × = 1/3 × -8/3
● x = -8/9
Hence , second rational number is -8/9 .
Thanks for asking