Question

найти значение выражения 4-(41/84-5/21)+7 11/30

Answer 1

4 -(41/84 -5/21) + 7 11/30   = 4 -(41/84 - 20/84) +221/30  = 4 - 21/84 + 221/30 =
4 - 1/4 +221/30 = 4 -15/60 +442/60 =4 - 427/60 = -187/60  = - 3 7/60