Cứu em từ câu 5 đến câu 8 với ạ! Cần gấp ạ Bài 6. Thực hiện phép tính,$1)~\frac2{-3}+2,5+\frac13+1\frac12$ $2)~\frac8{-3}+1,2+\frac13-2\frac15$ $3)~\frac1{-7}+3,25+\frac47+1\frac34~~4)\frac{-1}3+0,75+\frac{13}{-4}+2\frac13$,$5)~\frac{-2}3+1,4-\frac7{10}+1\frac23$ $6)~\frac56-1,75+\frac{13}6+3\frac12$ $7)~\frac78-1,25+\frac{11}8+2\frac12$ $8)~\frac{-5}6+1,8-\frac9{10}-1\frac16$

Question

Accepted Answer

Bài 6.
1) $~\frac2{-3}+2,5+\frac13+1\frac12 = -\frac{2}{3} + 2,5 + \frac{1}{3} + 1,5 = 0 + 4 = 4$
2) $~\frac8{-3}+1,2+\frac13-2\frac15 = -\frac{8}{3} + 1,2 + \frac{1}{3} - 2,2 = -\frac{8}{3} + \frac{1}{3} - 1 = -\frac{6}{3} - 1 = -2 - 1 = -3$
3) $~\frac1{-7}+3,25+\frac47+1\frac34 = -\frac{1}{7} + 3,25 + \frac{4}{7} + 1,75 = 0 + 5 = 5$
4) $\frac{-1}3+0,75+\frac{13}{-4}+2\frac13 = -\frac{1}{3} + 0,75 - \frac{13}{4} + \frac{7}{3} = -\frac{1}{3} + \frac{7}{3} - \frac{13}{4} + \frac{3}{4} = \frac{6}{3} - \frac{10}{4} = 2 - 2,5 = -0,5$
5) $~\frac{-2}3+1,4-\frac7{10}+1\frac23 = -\frac{2}{3} + 1,4 - \frac{7}{10} + \frac{5}{3} = -\frac{2}{3} + \frac{5}{3} + 1,4 - \frac{7}{10} = \frac{3}{3} + 1,4 - 0,7 = 1 + 0,7 = 1,7$
6) $~\frac56-1,75+\frac{13}6+3\frac12 = \frac{5}{6} + \frac{13}{6} - 1,75 + 3,5 = \frac{18}{6} + 1,75 = 3 + 1,75 = 4,75$
7) $~\frac78-1,25+\frac{11}8+2\frac12 = \frac{7}{8} + \frac{11}{8} - 1,25 + 2,5 = \frac{18}{8} + 1,25 = 2,25 + 1,25 = 3,5$
8) $~\frac{-5}6+1,8-\frac9{10}-1\frac16 = -\frac{5}{6} + 1,8 - \frac{9}{10} - \frac{7}{6} = -\frac{5}{6} - \frac{7}{6} + 1,8 - \frac{9}{10} = -\frac{12}{6} + 1,8 - 0,9 = -2 + 0,9 = -1,1$

Vậy, các kết quả là:
1) 4
2) -3
3) 5
4) -0,5
5) 1,7
6) 4,75
7) 3,5
8) -1,1