(-3,4 + 7) · (-1 7/8) = -6 3/4
1) -3,4 + 7 = 7 - 3,4 = 3,6
2) 3,6 · (-1 7/8) = 36/10 · (-15/8) = -(9·3)/(2·2) = -27/4 = -6 3/4
Вiдповiдь: -6 целых 3/4 (или -6,75 в десятичных дробях).
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(-3,4 + 7) · (-1 7/8) = -6 3/4
1) -3,4 + 7 = 7 - 3,4 = 3,6
2) 3,6 · (-1 7/8) = 36/10 · (-15/8) = -(9·3)/(2·2) = -27/4 = -6 3/4
Вiдповiдь: -6 целых 3/4 (или -6,75 в десятичных дробях).