Simplify the fraction
198/264
as much as possible

3/4.

Step-by-step explanation:

Find the prime factors:

198 =  2 * 99

99 = 3 * 3 * 11

So 198 = 2 * 3 * 3 * 11.

264 = 4 * 66 = 2 *2 * 66

66 = 2 * 3 * 11

So 264 = 2 * 2 * 2 * 3 * 11.

Now we find the Greatest common factor os the 2 numbers:

It is 2 * 3 * 11 = 66.

Therefore we can now simplify the fraction:

198/66 / 264/66

= 3/4.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies