99
Nine can go into both 36 and 81, so the simplest form of 36/81 = 4/9.
By unit of length and distance and conversion ,we can say that convert 5 ft 9 in to inches 1 ft=12 in 5 ft =60 5 ft 9 in =69 in convert 6 ft 4 in 6 ft =72 in 6 ft 4 in =76 in now,subtratcting 76-69 = 7 inches
The simple answer is that king size is much bigger. To be more specific however, requires that you identify what region you are in since the official dimensions defined for the two sizes vary a bit from region to region.In North America, a "Double" or "Full" size has dimensions (width x length) of 54in × 75in (137 cm × 191 cm) while in Australia it is officially 54in × 75in (137 cm x 187 cm), in the UK/Ireland the dimensions are 54in × 75in (135 cm × 190 cm, in Latin America and Continental Europe it is 55in × 79in (140 cm × 200 cm) and in Japan it is 55in × 77in (140 cm × 195 cm)."King Size" is 76in × 80in (193 cm × 203 cm) in North America, 72in × 80in (183 cm × 203 cm) in Australia, 75in × 79in (190 cm × 200 cm) in continental Europe and Latin America, and 76in × 77in (194 cm × 195 cm) in Japan. In UK/Ireland, the corresponding size is the "Super King" which is 72in × 78in (183 cm × 198 cm). "King" size in the UK/Ireland corresponds to the "Queen size" elsewhere and is 60in × 78in (150 cm × 200 cm).To confuse things even more, there is also the "California King Size" which is 72in × 84in (183 cm × 213 cm) in North America and "King Long" which is 76in × 81in (194 cm × 205 cm) in Japan,Note that, for North American and British/Irish beds, the sizes are specified in US customary units or Imperial units and the metric equivalents given are approximate. For Latin America, mainland Europe, and Japan, the sizes are specified in metric and the imperial equivalents given are approximate.