Question

(3 1/7- 2 3/14)+(2 3/42-1 1/7) помогите плиз а то скоро контрольная работа по математики

Answer 1

(3 1/7- 2 3/14)+(2 3/42-1 1/7)= 3 1/7- 2 3/14+2 3/42-1 1/7 = 3 1/7 - 1 1/7 - 2 3/14+2 3/42=2-2 3/14+2 3/42= -3/14+2 3/42=1 6/7