
1) 1 3/4+(-1/2) 2) 4 3/8 + (-1/4)3) 4 1/3 + (-7 5/9)


Ответы на вопрос

1) 1 3/4+(-1/2) =1 3/4-1/2=1 3/4-2/4=1 1/4
2) 4 3/8 + (-1/4)=4 3/8-1/4=4 3/8-2/8=
4 1/8
3) 4 1/3 + (-7 5/9)=4 1/3-7 5/9=4 3/9-
7 5/9=-3 2/9



Let's solve the given arithmetic expressions step by step:
- 1 3/4 + (-1/2)
To add these two fractions, we need to find a common denominator, which in this case is 4. The first fraction is already out of 4, so we just need to convert the second fraction:
1 3/4 + (-1/2) = 1 3/4 + (-2/4) = 1 + (3 - 2)/4 = 1 + 1/4 = 1 1/4
- 4 3/8 + (-1/4)
Again, we need to find a common denominator, which is 8 in this case. Convert the second fraction:
4 3/8 + (-1/4) = 4 3/8 + (-2/8) = 4 + (3 - 2)/8 = 4 + 1/8 = 4 1/8
- 4 1/3 + (-7 5/9)
For this expression, let's find a common denominator, which is 9:
4 1/3 + (-7 5/9) = 4 3/9 + (-7 5/9)
Now, since both fractions have the same denominator, we can simply add the whole numbers and the fractions separately:
4 + (-7) = -3 3/9 + 5/9 = 8/9
Combine the results:
-3 8/9
So, the simplified forms of the given expressions are:
- 1 3/4 + (-1/2) = 1 1/4
- 4 3/8 + (-1/4) = 4 1/8
- 4 1/3 + (-7 5/9) = -3 8/9


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