Chọn kết luận đúng nhất về kết quả của phép tính - 2 13   + - 11 26 " 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style="width: 89.33px; height: 36.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title="fraction numerator negative 2 over denominator 13 end fraction space plus fraction numerator negative 11 over denominator 26 end fraction"> :
A. Là số nguyên âm
B. Là số nguyên dương
C. Là số hữu tỉ âm
D. Là số hữu tỉ dương