Question

1)9 3/10+1 7/15 2)1 8/5+3 4/53)4 6/7+5 3/54)7 1/6-5 5/125)6 4/9-1 5/96)17 -12 3/5​

Answer 1

Ответ:

1 - 10,4

2 - 10,4

3 - 17,1

4 - 7,3

5 - 5,5

6 - -7,6

Пошаговое объяснение:

Я сократил, а то числа  большое. Надеюсь помог, удачи

Answer 2

Let's solve each of these addition and subtraction problems step by step:

1. 9 3/10 + 1 7/15:

To add mixed numbers, you first add the whole numbers, then add the fractions separately, and finally combine the whole number and fraction parts.

Whole numbers: 9 + 1 = 10 Fractional parts: 3/10 + 7/15

To add fractions with different denominators, you need to find a common denominator. In this case, the common denominator for 10 and 15 is 30.

Now, convert both fractions to have a denominator of 30:

3/10 = 9/30 (multiply the numerator and denominator by 3) 7/15 = 14/30 (multiply the numerator and denominator by 2)

Now, add the fractions with the same denominator:

9/30 + 14/30 = 23/30

So, the result is 10 23/30.

2. 1 8/5 + 3 4/5:

Whole numbers: 1 + 3 = 4 Fractional parts: 8/5 + 4/5

Add the fractions with the same denominator:

8/5 + 4/5 = 12/5

So, the result is 4 12/5, which can be simplified to 6 2/5.

3. 4 6/7 + 5 3/5:

Whole numbers: 4 + 5 = 9 Fractional parts: 6/7 + 3/5

To add fractions with different denominators, find a common denominator. The common denominator for 7 and 5 is 35.

Convert both fractions to have a denominator of 35:

6/7 = (6/7) * (5/5) = 30/35 3/5 = (3/5) * (7/7) = 21/35

Now, add the fractions with the same denominator:

30/35 + 21/35 = 51/35

So, the result is 9 51/35, which can be simplified to 9 6/5 or 10 1/5.

4. 7 1/6 - 5 5/12:

Whole numbers: 7 - 5 = 2 Fractional parts: 1/6 - 5/12

To subtract fractions with different denominators, find a common denominator. The common denominator for 6 and 12 is 12.

Convert both fractions to have a denominator of 12:

1/6 = (1/6) * (2/2) = 2/12 5/12 (already in terms of 12)

Now, subtract the fractions with the same denominator:

2/12 - 5/12 = -3/12

Simplify the fraction:

-3/12 = -1/4

So, the result is 2 - 1/4, which can be written as 1 3/4.

5. 6 4/9 - 1 5/9:

Whole numbers: 6 - 1 = 5 Fractional parts: 4/9 - 5/9

Subtract the fractions with the same denominator:

4/9 - 5/9 = -1/9

So, the result is 5 - 1/9.

6. 17 - 12 3/5:

To subtract mixed numbers, subtract the whole numbers and then subtract the fractions separately.

Whole numbers: 17 - 12 = 5 Fractional parts: 0 - 3/5 = -3/5

So, the result is 5 - 3/5.