Penjelasan dengan langkah-langkah:
1) (-2/5) - (3/5)= - 5/5= -1
2) (-12+4-3+7)= -12 + 1 +7= -4
3) 1 + (-0,6) - 0,8= 0,4 - 0,8= -0,4
4) - 9/2 x 2/3= - 18/6= -3
5) (-3,5) x (-2) x 9= 7 x 9= 63
6) 2/3 : 1/4= 2/3 x 4/1= 8/3= 2 2/3
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Penjelasan dengan langkah-langkah:
1) (-2/5) - (3/5)= - 5/5= -1
2) (-12+4-3+7)= -12 + 1 +7= -4
3) 1 + (-0,6) - 0,8= 0,4 - 0,8= -0,4
4) - 9/2 x 2/3= - 18/6= -3
5) (-3,5) x (-2) x 9= 7 x 9= 63
6) 2/3 : 1/4= 2/3 x 4/1= 8/3= 2 2/3