In conversion of temperature from one scale into another the given temperature in °C we can convert it into °F and also the temperature in °F we can convert it into °C.

The rules which are used in this conversion are given below:

**1.** When the temperature is given in degree Celsius:

**Step I:** Multiply
the given temperature in degree by 9

**Step II:** The
product we obtained from step I divide it by 5.

**Step III:** Atlast
add 32 with the quotient we obtained from step II to get the temperature in
degree Fahrenheit.

**2.** When the temperature is given in degree Fahrenheit:

**Step I:** Subtract
32 from the given temperature in degree

**Step II:** The
difference we obtained from step I multiply it by 5.

**Step III:** Atlast
the product we obtained from step II divide it by 9 to get the temperature in
degree Celsius.

Solved examples to convert the temperature from one scale into another:

**1. Convert into
degree Fahrenheit:**

(i) 45° C

The temperature is given in 45° C.

To convert into degree Fahrenheit first multiply 45 by 9 and we get 405.

Then, divide 405 by 5 we get 81.

Atlast we need to add 32 and 81 we get 113.

Therefore, 45° C = 113° F

(ii) 100° C

The temperature is given in 100° C. Now to convert into degree Fahrenheit first multiply 100 by 9 we get 900 then, divide 900 by 5 we get 180. Atlast we need to add 32 and 180 then we get 212.

Therefore, 100° C = 212° F

(iii) 50° C

Therefore, 50° C = 122° F

**2. Convert into
degree Celsius:**

(i) 98.4° F

The temperature is given in 98.4° F.

To convert into degree Celsius first we need to subtract 32 from 98.4 and we get 66.4.

Then, multiply 66.4 by 5 we get 332.

Atlast divide 332 by 9 and we get 36.9.

Therefore, 98.40° F = 36.9° C

(ii) 112° F

The temperature is given in 112° F. Now to convert into degree Celsius first we need to subtract 32 from 112 and we get 80 then, multiply 80 by 5 we get 400. Atlast divide 400 by 9 and we get 44.4.

Therefore, 112° F = 44.4° C

(iii) 212° F

Therefore, 212° F = 100° C

**Now let us
understand:**

On the Celsius Scale On the Fahrenheit Scale

Water freezes at 0° C 32° F

Water boils at 100° C 212° F

Normal body temperature 37° C 98.6° F

**Converting the Temperature from Celsius to Fahrenheit.**

**Converting the Temperature from Fahrenheit to Celsius.**

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