1). ( - 2 5/9 + 1 20/21 ) : 1 8/49 - 1 7/9 : ( - 6 )
/ - дробом.
Решить пример .
(-23/9 +41/21):57/49 - 16/9:(-6) = (-161/63+123/63):57/49 + 8/27=-38/63:57/49 + 8/27 =
-266/513+152/513 = -114/513 = -2/9
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Verified answer
(-23/9 +41/21):57/49 - 16/9:(-6) = (-161/63+123/63):57/49 + 8/27=-38/63:57/49 + 8/27 =
-266/513+152/513 = -114/513 = -2/9