Question

Вычислите: 1/2+3/4= 1 2/3+3 4/6= 2 2/5*10/12= 5/6:10/36= (3/4-1/2)*4/5+25/16:5/4=

Answer 1

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Answer 2

Давайте вычислим каждое выражение по очереди:

1. 1/2 + 3/4 = (12 + 31) / (2*2) = 2/2 + 3/4 = 5/4 = 1 1/4.

2. 1 2/3 + 3 4/6 = (13 + 2) + (36 + 4) / 3 = 3 + 2 + 22/3 = 5 + 22/3 = (5*3 + 22) / 3 = 37/3 = 12 1/3.

3. 2 2/5 * 10/12 = (25 + 2) / 5 * 10/12 = 12/5 * 10/12 = (1210) / (5*12) = 120/60 = 2.

4. 5/6 : 10/36 = 5/6 * 36/10 = (536) / (610) = 180/60 = 3.

5. (3/4 - 1/2) * 4/5 + 25/16 : 5/4 = (6/8 - 4/8) * 4/5 + (25/16 * 4/5) / (5/4) = 2/8 * 4/5 + 100/80 / (5/4) = 8/40 + 5/4 = (8 + 50) / 40 = 58/40 = 1 18/40 = 1 9/20.

Таким образом, получаем следующие значения:

1. 1/2 + 3/4 = 1 1/4.
2. 1 2/3 + 3 4/6 = 12 1/3.
3. 2 2/5 * 10/12 = 2.
4. 5/6 : 10/36 = 3.
5. (3/4 - 1/2) * 4/5 + 25/16 : 5/4 = 1 9/20.