Question

5,2+(-4целых1/3)= . 3целых2/7+(-1,27)=​

Answer 1

1. 13/15
2. 2целых11/700

Answer 2

To solve these arithmetic expressions, let's break down each step:

1. 5 and 2/7 + (-4 and 1/3)

First, let's convert the mixed numbers to improper fractions:

• 5 and 2/7 = 37/7
• -4 and 1/3 = -13/3

Now add the fractions:

37/7 + (-13/3)

To add these fractions, they need a common denominator. The common denominator for 7 and 3 is 21. So, we'll convert the fractions:

(37/7) * (3/3) = 111/21
(-13/3) * (7/7) = -91/21

Now we can add:

111/21 - 91/21 = 20/21

The result as a mixed number is 20/21, which is approximately 0.9524.

2. 3 and 2/7 + (-1.27)

First, convert the mixed number to an improper fraction:

• 3 and 2/7 = 23/7

Now subtract the decimal number:

23/7 - 1.27

To perform this operation, we can convert the decimal to a fraction by considering it as a fraction over 100:

1.27 = 127/100

Now subtract:

23/7 - 127/100

To subtract these fractions, they also need a common denominator. The common denominator for 7 and 100 is 700. Convert the fractions:

(23/7) * (100/100) = 2300/700 (127/100) * (7/7) = 889/700

Now subtract:

2300/700 - 889/700 = 1411/700

Simplify the fraction:

1411/700 = 2 and 111/700

So, the result is approximately 2.1586.

In summary:

1. 5 and 2/7 + (-4 and 1/3) ≈ 0.9524
2. 3 and 2/7 + (-1.27) ≈ 2.1586