Впр по математике 6 класс
Вычислите.

2 4/15 - ( 2 - 1 1/15 ) : 4/9 + 2/3
1) 2 - 1 1/15 = 1 15/15 - 1 1/15 = ( 1 - 1 ) + ( 15/15 - 1/15 ) = 14/15
2) 14/15 : 4/9 = 14 * 9/15 * 4 = 126/60
3) 2 4/15 - 126/60 = 2 4 * 4/15 * 4 - 126/60 = 2 16/60 - 126/60 = 60 * 2 + 16/60 - 126/60 =
120 + 16/60 - 126/60 = 136/60 - 126/60 = 10/60
4) 10/60 + 2/3 = 10/60 + 2 * 20/3 * 20 = 10/60 + 40/60 = 50/60 = 50 : 10/60 : 10 = 5/6

Ответ: 5/6.