Question

1) 4 17/19 + 10/19 2) 8 10/13 + 7 8/13 3) 7 4/23 - 1 17/23 Обчисли:

Answer 1

Відповідь:1)=93/19+10/19=103/19=5 8/19

                   2)=114/13+99/13=213/13=16 5/13

                   3)=165/23-40/23=125/23=5 10/23

Answer 2

1. To add the fractions 4 17/19 and 10/19, we first convert the whole number 4 into a fraction. Since there are 19 parts in one whole, the fraction equivalent of 4 is 4/1 multiplied by 19/19, which gives us 76/19. Now we can add the fractions:

(76/19) + (10/19) = (76 + 10)/19 = 86/19

Therefore, the sum of 4 17/19 and 10/19 is 86/19.

2. To add the mixed numbers 8 10/13 and 7 8/13, we first add the whole numbers together:

8 + 7 = 15

Next, we add the fractions. The denominators are the same (13), so we can add the numerators directly:

(10 + 8)/13 = 18/13

Combining the whole number and the fraction, we get:

15 18/13

Therefore, the sum of 8 10/13 and 7 8/13 is 15 18/13.

3. To subtract the mixed numbers 7 4/23 and 1 17/23, we first subtract the whole numbers:

7 - 1 = 6

Next, we subtract the fractions. The denominators are the same (23), so we can subtract the numerators directly:

(4 - 17)/23 = -13/23

Combining the whole number and the fraction, we get:

6 - 13/23

Therefore, the difference between 7 4/23 and 1 17/23 is 6 - 13/23.