FRAME 4-45.
Solution to
If you wish to convert from Fahrenheit to Celsius, you must also consider
Frame 4-44
the difference in freezing temperatures. For example, to convert from
o
a. 32 [0 x 9/5 = 0;
77 F to Celsius, you must first determine how many degrees above
0+32 = 32]
o
o
freezing 77 F really is. This means you must subtract 32 F first.
o
o
o
o
o
77 32 = 45 . Since 1 F = 5/9 C, you can multiply 45 by either 5/9
b. 212 [100 x 9/5 =
or by 0.5556 (conversion factor rounded to nearest ten-thousandth). The
180; 180 +
result is 25, that is, 25 degrees Celsius above freezing. Since freezing is
32 = 212]
o
o
o
0 C, no further adjustment needs to be made. 77 F = 25 C. The
following formulas can be used to convert from Fahrenheit to Celsius.
c. 100.4 [38 x 1.8=
68.4; 68.4+
o
o
o
o
o
o
32 =100.4]
C =
5 ( F 32 )
OR
C = 0.5556 ( F 32 )
9
d. 413.6 [212 x 1.8 =
381.6;
381.6 + 32=
Remember, when converting from Fahrenheit to Celsius, you
413.6
first, then multiply (or multiple and divide).
_______________________________________________________________________________________
FRAME 4-46.
Solution to
Convert the following Fahrenheit temperatures to Celsius using either of
Frame 4-45
the formulas given in Frame 4-43.
subtract
o
o
a. 32 F =
C
o
o
b. 100 F =
C
o
o
c. 212 F =
C
o
o
d. 0 F =
C
_______________________________________________________________________________________
MD0900
4-23