Question

-6,5+8,23= , -5/8-(-7/12)=, -1,7-(-8)=, 4,75+(-2,83)=

Answer 1

Пошаговое объяснение:

-6,5 + 8,23 = 1,73

-5/8-(-7/12)= -5/8+7/12 (( т.к. (-) на (-) даёт знак (+))) = -15/24+14/24= -1/24

-1,7-(-8)= -1,7+8 = 6,3

4,75+(-2,83) = 1,92

Answer 2

-6,5 + 8,23= 1.73

-5/8-(-7/12)=-5/8+7/12=-1/24

-1,7-(-8)=-1,7+8=6,3

4,75+(-2,83)=4,75-2,83=1,92

Answer 3

Let's solve each of the given arithmetic expressions step by step:

1. -6.5 + 8.23:

Add the numbers together:

-6.5 + 8.23 = 1.73

2. -5/8 - (-7/12):

When you subtract a negative number, it becomes addition:

-5/8 + 7/12

To add fractions, we need a common denominator. The least common multiple of 8 and 12 is 24:

(-5/8)(3/3) + (7/12)(2/2) = -15/24 + 14/24

Now, combine the fractions:

-15/24 + 14/24 = -1/24

3. -1.7 - (-8):

When you subtract a negative number, it becomes addition:

-1.7 + 8 = 6.3

4. 4.75 + (-2.83):

Add the numbers together:

4.75 + (-2.83) = 1.92

So, the results of the given expressions are:

1. -6.5 + 8.23 = 1.73
2. -5/8 - (-7/12) = -1/24
3. -1.7 - (-8) = 6.3
4. 4.75 + (-2.83) = 1.92