Question

which of the following pairs of rational numbers represent the same rational numbers a) 7/4,-35/-20 b) -24/42, c) 5/-8, -15/16​

Answer 1

Answer:

option (a) is right

Step-by-step explanation:

7/4 -35/-20

(-) is cut in 35 and in 20 because they are in numerator and denominator and the answer is left 7/4

Answer 2

Answer:

7/4,-35/-20

7/4=7×(-5)/4×(-5)=-35/-20

Hence, 7/4 and -35/-20 represent the same rational number

ii)-24/42,-4/7

-24/42=-24÷(-6)/42÷(-6)=4/-7

Hence,-24/42 abd -4/7 represent the same rational number