Question

Sa se calculeze:
c) 1/8 + 5/9 + 7/8 + 13/9

g) 54/42 : 72/56 + 1/3

h) [(5/6+1/9):1/2 - 2/3] x 3/4
Va rog urgent imi trebuie!
Cu toate rezolvările , nu puneți numai cu rezultate.

Answer 1

c)3; g)4/3=1 1/3; h) 11/12

Explicație pas cu pas:

c) 1/8+5/9+7/8+13/9=9/72+40/72+63/72+104/72 =216/72=3

g)54/42:72/56+1/3=4/3=1 1/3

1)54/42×56/72=9/6×8/12=72/72=1

2)1+1/3=4/3=1 1/3

h) [(5/6+1/9):1/2-2/3]×3/4=11/12

1) 5/6+1/9=30/36+4/36=34/36

2) 34/36:1/2=34/36×2/1=34/18×1/1=34/18

3)34/18-2/3=34/18-12/18=22/18

4)22/18×3/4=11/6×1/2=11/12

Baftă! :)