Question

A) 7 7/9 - 4 1/2 +2 3/4 б) 10 9/16 -(3 11/12+4 4/9в) 17 2/3-6 1/36 +4 3/8:г)(20-10 23/36)-(14 4/27-6 1/18).ПОМОООЩ❤❤❤​

Answer 1

Ответ:

думаю б) 10 9/16 -(3 11/12+4 4/9 Я точно незнаю но кажется этот

Answer 2

Пошаговое объяснение:

удачи удачи удачи удачи

Answer 3

a) 7 + 7/9 - 4 + 1/2 + 2 + 3/4

To add and subtract mixed numbers, we need to first convert them to improper fractions.

7 + 7/9 = 63/9 + 7/9 = 70/9 4 + 1/2 = 8/2 + 1/2 = 9/2 2 + 3/4 = 8/4 + 3/4 = 11/4

Now we can add and subtract the fractions:

70/9 - 9/2 + 11/4 First, find a common denominator for all the fractions, which is 36.

70/9 * 4/4 = 280/36 9/2 * 18/18 = 162/36 11/4 * 9/9 = 99/36

Now we can add and subtract:

280/36 - 162/36 + 99/36 = 217/36

So, the answer to part a) is 217/36.

b) 10 + 9/16 - (3 + 11/12 + 4 + 4/9)

First, convert the mixed numbers to improper fractions:

10 + 9/16 = 160/16 + 9/16 = 169/16 3 + 11/12 = 36/12 + 11/12 = 47/12 4 + 4/9 = 36/9 + 4/9 = 40/9

Now we can subtract:

169/16 - (47/12 + 40/9) First, find a common denominator for all the fractions, which is 144.

169/16 * 9/9 = 1521/144 47/12 * 12/12 = 564/144 40/9 * 16/16 = 640/144

Now we can subtract:

1521/144 - (564/144 + 640/144) = 1521/144 - 1204/144 = 317/144

So, the answer to part b) is 317/144.

c) 17 + 2/3 - 6 + 1/36 + 4 + 3/8

First, convert the mixed numbers to improper fractions:

17 + 2/3 = 51/3 + 2/3 = 53/3 6 + 1/36 = 216/36 + 1/36 = 217/36 4 + 3/8 = 32/8 + 3/8 = 35/8

Now we can add and subtract:

53/3 - 217/36 + 35/8 First, find a common denominator for all the fractions, which is 72.

53/3 * 24/24 = 1272/72 217/36 * 2/2 = 434/72 35/8 * 9/9 = 315/72

Now we can add and subtract:

1272/72 - 434/72 + 315/72 = 1153/72

So, the answer to part c) is 1153/72.

d) (20-10+23/36)-(14+4/27-6+1/18)

First, simplify the expressions inside the parentheses:

20 - 10 + 23/36 = 10 + 23/36 14 + 4/27 - 6 + 1/18 = 8 + 4/27 + 1/18

Now we can subtract:

(10 + 23/36) - (8 + 4/27 + 1/18) First, find a common denominator for all the fractions, which is 324.

10 * 324/324 + 23/36 * 9/9 = 3240/324 + 207/324 = 3447/324 8 * 36/36 + 4/27 * 12/12 + 1/18 * 18/18 = 288/36 + 48/324 + 18/324 = 336/36

Now we can subtract:

3447/324 - 336/36 = 3447/324 - 936/324 = 2511/324

So, the answer to part d) is 2511/324.