Find the ratio of the following :(a) 81 to 108                     (b) 98 to 63(c) 33 km to 121 km         (d) 30 minutes to 45 minutes

Explanation

(a) `81/108 = (3**27)/(4**27) = 3/4`

(b)`98/63 = (14**7)/(9**7) = 14/9`

(c) `(33km)/(121km) = (3**11)/(11**11) = 3/11`

(d)`(30min)/(45min) = (2**15)/(3**15) = 2/3`