b. 1 1/2 * (-5/3)
~ 1 1/2 = 3/2 (I multiplied the denominator 2 with the whole number 1 and got 2. After that I added the 2 with the numerator and got 3. [2*1= 2+1= 3] )
~ 3/2 * 5/3 = 15/6 (I multiplied the denominator with denominator. [2*3=6] And I multiplied the numerator with numerator. [3*5=15] )
~ 15/6= 5/2 (to simplify, I divided 15 by 6 and got 2.5 and therefore 2 goes into 5 2.5 times)
Sorry I couldn't do all.
