Question

the product of two rational numbers is -28/21. if one of the number is 14/27 find the other

Answer 1

the other is (-28/21) ÷ (14/27)
= (-28/21)(27/14)
= -2/3

Answer 2

-28/21 ÷ 27/14
= -28/21 × 27/14
14×2= 28
and 27/ 21= 9/7
so res is (2×9 )/7
=18/7 with - sign