b) Find the difference 7/6-1/4

Find the difference: 7/(11)-4/(11)

Find the difference: 4/(7)-3/(10)

Evaluate the difference: 5/(6)-1/(4)

6.Find the difference: (i) 5/7-2/7

Find the difference of : 2/3\ a n d\ 6/7

Evaluate the difference: 5(2)/(7)-4(1)/(9)

Evaluate the difference: 6(7)/(15)-5(5)/(12)

Find the minor of element 6 in the determinant Delta=|1 2 3 4 5 6 7 8 9|

Find the mode in each of the following data collection. 8,6,7,6,5,4, (1)/(2), 7 (1)/(2), 6 (1)/(2), 8 (1)/(2), 10,7,5,5(1)/(2), 8,9 7,5,6,8 (1)/(2),6

Show that A B!=B A in the following case: A=[5-1 6 7] and B=[2 1 3 4]