Выполните значение выражения

Question

Выполните значение выражения

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Answer 1

0,8*5/8 = 8/10 * 5/8 = 5/10 = 1/2
7/15 - 1/6 = 14/30 -5/30 = 9/30 =3/10
3/10:3/20 = 3/10 * 20/3 = 20/10 = 2
1/2 + 2 = 2цел 1/2

Answer 2

0,8*5/8 = 8/10 * 5/8 = 5/10 = 1/2
7/15 - 1/6 = 14/30 -5/30 = 9/30 =3/10
3/10:3/20 = 3/10 * 20/3 = 20/10 = 2
1/2 + 2 = 2 1/2