Question

Вычислите: -3/5-1/5;2) -1/3-2/3;3) -3/7-4/7; 4)-4 3/8-2 1/4;5) -6 1/2- 3 5/7; 6) -9 - 3 5/9

Answer 1

1)-4/5
2)-1
3)-1
4)-35/8-9/4=-35/8-18/8=-50/8=-6 1/4
5)-13/2-26/7=-91/14-52/14=-143/14=-1 314
6)-9/1-32/9=-81\9-32/9=-113/9=-1 5/9

Answer 2

Давайте вычислим каждое из этих выражений:

1. -3/5 - 1/5 = (-3 - 1) / 5 = -4/5

2. -1/3 - 2/3 = (-1 - 2) / 3 = -3/3 = -1

3. -3/7 - 4/7 = (-3 - 4) / 7 = -7/7 = -1

4. -4 3/8 - 2 1/4 = (-4 - 2) + (-3/8 - 1/4) = -6 - (6/8 + 2/8) = -6 - 8/8 = -6 - 1 = -7

5. -6 1/2 - 3 5/7 = (-6 - 3) + (-1/2 - 5/7) = -9 + (-7/14 - 10/14) = -9 - 17/14 = -9 - 1 3/14 = -10 3/14

6. -9 - 3 5/9 = (-9 - 3) - 5/9 = -12 - 5/9

Итак, результаты:

1. -4/5
2. -1
3. -1
4. -7
5. -10 3/14
6. -12 5/9