Question

check if the following are equivalent rational number.if they are not ,make a change in the second number to make it equivalent to the first
(i)6/7,54/63
(ii)-7/12,-27/-32
(iii)-9/11,-27/-32
(iv)11/13,99/117
(v)13/-15,68/-90​

Answer 1

Answer:

Step-by-step explanation:

(i) LCM of the denominators 7 and 63 is 63. Then change both the denominators to 63. To change 1st no. you need to multiply the denominator by 9 (because 7*9=63) if we multiply the denominator with 9 we need to multiply the numerator also. Therefore, the fraction 6/7 becomes 54/63.  

you can do the rest in the same way hope this helps if you want me to send more detailed explanation pls reply

Answer 2

Answer:

6/7,54/63

6/7

6×9=54

7×9=63

So.these both are equivalent