Question

42 is what percent of 140

Answer 1

42 is 30% of 140

This is evident because, 42÷140=0.3

And you should hopefully know your place values right?

So then we know that 3 is in the10ths place and so to change the decimal to a fraction we get 3/10 which then changed to a percent, is equal to 30.

Long story short, 42 is 30% of 140 :)