-3/8×8/5+2 1/4÷(-11/15) +1/4=
-3×1/5+9/4÷(-15/11)+1/4=
-3/5-9/4×11/15+1/4=
-3/5-3/4×11/5+1/4=
-3/5-33/20+1/4=
(-12-33+5)/20= -40/20= -2
Ответ: -2
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-3/8×8/5+2 1/4÷(-11/15) +1/4=
-3×1/5+9/4÷(-15/11)+1/4=
-3/5-9/4×11/15+1/4=
-3/5-3/4×11/5+1/4=
-3/5-33/20+1/4=
(-12-33+5)/20= -40/20= -2
Ответ: -2