If 40% of a number is equal to two-third of another number, what is the ratio first to second?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number? A) 2 : 5 B) 3 : 7 C) 5 : 3 D) 7 : 3 #ratio #proportion #math https://www.youtube.com/watch?v=YOfASYdaS2U