133.33333333 ......... %
Why?
40/30 cancels down to 4/3.
'What is 4/3 as a percentage?' just means 'how many hundredths are there in 4/3?'
How many........... x
hundreths.......... 1/100
are there ............ =
in 4/3 ....... 4/3
so we need to find x/100 = 4/3 for x as the percentage.
Multiply both sides by 100 to get x = 400/3 = 133.3333333.......... which is the percentage.