Step-by-step explanation:
(a)→ Given numbers are 7/-13 and -8/15
LCM of 13 and 15 = 195
7/-13
= -7/13
= (-7/13)×(15/15)
= (-7×15)/(13×15)
= -105/195
and
-8/15
= (-8/15)×(13/13)
= (-8×13)/(15×13)
⇛ -104/195
So,
-105/195 < -104/195
-7/13 < -8/15
(b)→ Given numbers are 5/8 and -9/14
We know that
Negative numbers are always less than positive numbers
5/8 > -9/14
(c).→Given numbers are -11/16 and 13/-16 = -13/16
-11/16 >-13/16
(d)→Given numbers are -9/-13 = 9/13 and
36/52 = 9/13
Both are same
-9/-13 = 36/52