if the slope is 1 in 22, draw horizontal line 22 long, then vertical line 1 high,
hypotonuse is slope, angle of slope is (INV tan ( 1 / 22))
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same deal for 1 in 66, 66 along then 1 up, angle is (INV tan ( 1 / 66))
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0.0455
The LCM is 66.
21 over 66 is 21/66, and to simplify you must find to common factors of the two numbers ( the denominator and the numerator). a common one in this case is 3. 66 divided by 3= 22 and 21 divided by 3=7So the answer is 7/22 (7 over 22)
33 is 66% of what= 33 / 66= 33 / 0.66= 50