(-7 3/4 + 6 3/12) / (-4/9) = 3 3/8
1) -7 3/4 + 6 3/12 = -7 9/12 + 6 3/12 = -1 6/12 = -1 1/2
2) -1 1/2 : (-4/9) = 3/2 · 9/4 = 27/8 = 3 3/8 (-) : (-) = (+)
ответ: 3 целых 3/8 (или 3,375 в десятичных дробях).
