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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: a) 0,1(6) + 1,(3) b) 1,(3) + 0,1(2).2 8/11 c) 0,(6) + 1,(6) d) 3,(6) + 1,(36) .2 1/5

Tháng Sáu 14, 2022 Toán học 1 Comment 0 views

Toán Lớp 7: a) 0,1(6) + 1,(3)
b) 1,(3) + 0,1(2).2 8/11
c) 0,(6) + 1,(6)
d) 3,(6) + 1,(36) .2 1/5

Comments ( 1 )

  1. ngocbichchau
    ngocbichchau
    14 Tháng Sáu, 2022 at 11:46 chiều
    Reply
     a,=$\frac{16-1}{90}$+$\frac{13-1}{90}$ =$\frac{15}{90}$+ $\frac{12}{90}$ = $\frac{27}{90}$ = $\frac{3}{10}$ 
    b,=$\frac{13-1}{90}$+$\frac{12-1}{90}$.$\frac{28}{11}$ = $\frac{12}{90}$+ $\frac{11}{90}$.$\frac{28}{11}$ =$\frac{12}{90}$+ $\frac{14}{45}$ =$\frac{6}{45}$+ $\frac{14}{45}$ = $\frac{20}{45}$ =$\frac{4}{9}$

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222-9+11+12:2*14+14 = ? ( )

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