Do you mean 1/2 of 1/4 if so it’s just timsing the numerator by the numerator and the denominator by the denominator. So, 1 x 1 = 1 and 2 x 4 = 8
Therefore it’s 1/8!
If you didn’t understand I’ll gladly elaborate!
ANSWER:
-14 1/2
STEP-BY-STEP:
-4 1/7 x 3 1/2 = -14.50
-14.50 turned into the simplest fraction it can be, without changing the whole number, is -14 1/2
The decimal 68.145 written as a fraction is 68145/1000