How to multiply whole numbers by fractions

Any whole number is over one...so if the whole number was 5 it would be bkuz the line in between the numerator and denominator is a dividing sign and 5 divided by 1 is 5

So you put the whole number whatever it is over 1 then multiply that by the fraction

Example:

6 x is the same as saying x which equals because 6 times 3 equals 18 and 4 times 1 equals 4

Now you need to simplify or divide...

So, is the same as or bkuz 4 goes into 18 4 and a half times

4 : 3 : 2

x - area unit

area of the kitchen = 4x

area of the playroom = 3x

area of the dinning room = 2x

The combined area of these three rooms is 189 ft².

Therefore we have the equation

4x + 3x + 2x = 189

9x = 189    |:9

x = 21 ft²

area of the kitchen = 4x = 4(21) = 84 ft²

area of the playroom = 3x = 3(21) = 63 ft²

area of the dinning room = 2x = 2(21) = 42 ft²

Step-by-step explanation: