Răspuns:
Explicație pas cu pas:
a)(5/6+3/4)-24/19-(2/3-1/6)*4/3=
(10/12+9/12)-24/19-(4/6-1/6)*4/3=
19/12-24/19-3/6*4/3=
361/228-288/228-1/3=
73/288-1/3=
73/288-96/288=
-23/288
c)(5/6+7/8)*18/41+1/4*16/25*(3/4-1/2-1/8)=
(20/24+21/24)*18/42+1/4*16/25(1/4-1/8)=
41/24*18/42+1/4*16/25*1/8=
41/4*3/42+4/25*1/8=
123/168+1/50=124/168
b)(1/6+7/9)*18/17+2/3*(1/7-1/21)
(6/36+28/36)*18/17+2/3*2/21=
34/36*18/17+1/7=
2/2*1/1+1/7=
2/2+1/7=
14/14+2/14=
16/14=8/7
d)(5/12-3/18)*4+1/11+(4/3-1/1)*3=
(5/12-2/12)*4/1+1/11+1/3*3=
3/12*4/1+1/11+3/3=
3/3*1/1+1/11+3/3=
3/3+1/11+3/3=
33/33+3/33+3/3=
36/33+3/3=
36/33+33/33=
69/33=
23/11
