Question

qual é o resultado:

a.8 - 5/4 × 6+ 1/3=

b.(0.4+1/2)2 -1/10=

c.(2/5+0.1)×(2/3)2=

Answer 1

a. 8/1-5/4.6/1+1/3= 8/1-30/4+1/3=(96-90+4)/12=10/12=5/6

b. (0,4+1/2)2-1/10=(4/10+1/2)2-1/10=((4+5)/10)2-1/10=(9/10).2-1/10=18/10-1/10=17/10=1,7

c. (2/5+0,1).(2/3).2=(2/5+1/10).4/3=(4+1)/10.4/3=5/10.4/3=20/30=2/3