Question

1-3/3×(3/4)-{2-[3/4-1+2/5×(-10+15/4)]}=

Answer 1

1-3/3×(3/4)-{2-[3/4-1+2/5×(-10+15/4)]}
1-3/3×(3/4)-{2-[3/4-1+2/5×(-40/4+15/4]}=
1-3/3×(3/4)-{2-[3/4-1+2/5×-25/4]}=
1-3/3×(3/4)-{2-[3/4-1+ - 25*2/4*5]}=
1-3/3×(3/4)-{2-[3/4-1+ - 50/20]}=
50/20 = 25/10 = 5/2 = 10/4
1-3/3×(3/4)-{2-[3/4-1- 5/2]}=
1-3/3×(3/4)-{2-[-1/4 -10/4]}=
1-3/3×(3/4)-{2--11/4}=
1-3/3×(3/4)-{2+11/4}=
1-3/3×(3/4)-19/4=
1-3/3×0,75 -19/4=
1-1×0,75 -19/4=
1-0,75 -19/4=
1/4 -19/4=
-18/4

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