convert 16 and 2/3 to impropoer
16 and 2/3=50/3
percent means parts out of 100
16 and 2/3%=(16 and 2/3)/100=(50/3)/100=50/300=1/6
'of' means multiply
therefor we translate
16 and 2/3% of what is 45
1/6 times what=45
multiply bth sdies by 6/1 to clear fractio (1/6 times 6/1=6/6=1)
what=270
the number si 270
