E = 7/4 +1/4 * 8/3 F= (7/4 + 3/4 ) * 8/3

e = 7/4 +1/4 x8/3
e = 7/4 + 8/12
e = 21/12+8/12
e = 29/12

f =(7/4+3/4) x8/3
f = (10/4) x 8/3
f= 5/2 x8/3
f = 40/6
f = 20/3

E = 7/4 + 1/4 x 8/3
E = 7/4 + 8/12
E = 7 x 3 / 4 x 3 + 8/12
E = 21/12 + 8/12
E = 29/12

F = (7/4 + 3/4) x 8/3
F = 10/4 x 8/3
F = 80/12
F = 4 x 20 / 4 x 3
F = 20/3