Ответ:

1) 3/5⁶+5/6⁵=18+25/30= 43/30=1 13/30

2) 6/11⁹+4/9¹¹=54+44/99= 98/99

4) 7/18¹+1/6³=7+3/18= 10/18

6) 5/7⁴+3/4⁷= 20+21/28= 41/28 = 1 13/28

8) 5/8¹ + 3/4² =5+6/8= 11/8= 1 3/8

Пошаговое объяснение:

1) 3/5 и 5/6 => (3*6)/(5*6) и (5*5)/(6*5) =>

18/30 и 25/30

2) 6/11 и 4/9 => (6*9)(11*9) и (4*11)/(9*11) =>

53/99 и 44/99

3) 5/6 и 4/11 => (5*11)/(6*11) и (4*6)/(11*6) =>

55/66 и 24/66

4) 7/18 и 1/6 => 7/18 и (1*3)/(6*3) =>

7/18 и 3/18

5) 9/13 и 4/5 => (9*5)/(13*5) и (4*13)/(5*13) =>

45/65 и 52/65

6) 5/7 и 3/4 => (5*4)/(7*4) и (3*7)/(4*7) =>

20/28 и 21/28

7) 2/15 и 1/3 => 2/15 и (1*5)/(3*5) =>

2/15 и 5/15

8) 5/8 и 3/4 => 5/8 и (3*2)/(4*2) =>

5/8 и 6/8