Question

8\15+6\7= 13\6+9\8= 11\\2+5\8= 7\34+2\17= 5\3+8\9= 11\80+4\15= 3\7+21\4=

Answer 1

1,39

3,29

6,125

0,32

2,(5)

0,4

5,68

Answer 2

-8

3 ост2

-8 ост1

...

карочь както так?

Answer 3

To solve these expressions, we need to find a common denominator for each fraction and then perform the addition. Let's go through them step by step:

1. 8/15 + 6/7: The common denominator for 15 and 7 is 105. So, we'll rewrite the fractions: (8/15) + (6/7) = (56/105) + (90/105) = (56 + 90)/105 = 146/105

2. 13/6 + 9/8: The common denominator for 6 and 8 is 24. So, we'll rewrite the fractions: (13/6) + (9/8) = (52/24) + (27/24) = (52 + 27)/24 = 79/24

3. 11/2 + 5/8: The common denominator for 2 and 8 is 8. So, we'll rewrite the fractions: (11/2) + (5/8) = (44/8) + (5/8) = (44 + 5)/8 = 49/8

4. 7/34 + 2/17: The common denominator for 34 and 17 is 34. So, we'll rewrite the fractions: (7/34) + (2/17) = (7/34) + (2*2/34) = (7 + 4)/34 = 11/34

5. 5/3 + 8/9: The common denominator for 3 and 9 is 9. So, we'll rewrite the fractions: (5/3) + (8/9) = (15/9) + (8/9) = (15 + 8)/9 = 23/9

6. 11/80 + 4/15: The common denominator for 80 and 15 is 240. So, we'll rewrite the fractions: (11/80) + (4/15) = (33/240) + (64/240) = (33 + 64)/240 = 97/240

7. 3/7 + 21/4: The common denominator for 7 and 4 is 28. So, we'll rewrite the fractions: (3/7) + (21/4) = (12/28) + (147/28) = (12 + 147)/28 = 159/28

So the results of the given expressions are:

1. 8/15 + 6/7 = 146/105
2. 13/6 + 9/8 = 79/24
3. 11/2 + 5/8 = 49/8
4. 7/34 + 2/17 = 11/34
5. 5/3 + 8/9 = 23/9
6. 11/80 + 4/15 = 97/240
7. 3/7 + 21/4 = 159/28