Below is the measurement division mode for 6 divided by 4/7 equal 7 1/2. note that 4/5 goes into 6 seven times with 2 fractional units left over (circled). those two fractional units give the 1/2 in 7 1.2 because they represent (choose one)

a. 1/2 of the dividend (i. e., 1/2 of 6)

b. 1/2 of whole unit (i. e., 1/2 of 1)

c. `1/2 of 4 fractional units (i. e., 1/2 of 4/5)