Пошаговое объяснение:
(2 8/15 + 16 16/25 - 4 1/3 - 0,64) * 5 =
= (2 40/75 + 16 48/75 - 4 25/75 - 0,64) * 5 =
= (14 63/75 - 64/100) * 5 =
= (14 252/300 - 192/300) * 5 =
= 14 60/300 * 5 =
= 14 1/5 * 5 =
= 71/5 * 5 = 71,
(-1 1/4) * (-25) * 4/5 - (-36) : 3/4 =
= 5/4 * 25 * 4/5 + 36 * 4/3 =
= 25 + 12 * 4 = 25 + 48 = 73
(2 целых 8/15 + 16 целых 16/25 - 4целых 1/3 - 0,64) * 5 =
10целых 40/15+80 целых 80/25-20целых 5/3-3.2=
10целых 8/3+80 целых 16/5-20целых 5/3-3.2=
12целых 2/3+83целых 1/5-21целых 2/3-3 целых 1/5=
(83целых 1/5-3 целых 1/5)+12целых 2/3-21целых 2/3=80-9=71
2) (-1 1/4) * (-25) * (4/5) - (-36) : (3/4 )= (5/4) * 25 * (4/5) + 36 * (4/3)=
= 25 + 48 = 73
Пошаговое объяснение:
(2 8/15 + 16 16/25 - 4 1/3 - 0,64) * 5 =
= (2 40/75 + 16 48/75 - 4 25/75 - 0,64) * 5 =
= (14 63/75 - 64/100) * 5 =
= (14 252/300 - 192/300) * 5 =
= 14 60/300 * 5 =
= 14 1/5 * 5 =
= 71/5 * 5 = 71,
(-1 1/4) * (-25) * 4/5 - (-36) : 3/4 =
= 5/4 * 25 * 4/5 + 36 * 4/3 =
= 25 + 12 * 4 = 25 + 48 = 73
(2 целых 8/15 + 16 целых 16/25 - 4целых 1/3 - 0,64) * 5 =
10целых 40/15+80 целых 80/25-20целых 5/3-3.2=
10целых 8/3+80 целых 16/5-20целых 5/3-3.2=
12целых 2/3+83целых 1/5-21целых 2/3-3 целых 1/5=
(83целых 1/5-3 целых 1/5)+12целых 2/3-21целых 2/3=80-9=71
2) (-1 1/4) * (-25) * (4/5) - (-36) : (3/4 )= (5/4) * 25 * (4/5) + 36 * (4/3)=
= 25 + 48 = 73