-6 2/7 × (-4)-3,8:0,1+2 13/21:(-18 1/3)

- 6 2/7 × (- 4) - 3, 8 : 0, 1 + 2 13/21 : (- 18 1/3) = 137 324/385. 1) - 6 2/7 × (- 4) = 44 * 4 = 176. 2) 3, 8 : 0, 1 = 38. 3) 176 - 38 = 138. 4) 2 13/21 : (- 18 1/3) = - 61/21 : 55/3 = - 61/21 * 3/55 = - 61/7 * 1/55 = - 61/385. 5) 138 + (- 61/385) = 138 - 61/385 = 137 385/385 - 61/385 = 137 324/385.