minta bantuan yah plis

6) 4 3/11 + 5/6
= 4 ( 18/66 + 55/66)
= 4 73/66
= 5 7/66

7) 8 5/7 + 8/21
= 8 (15/21 + 8/21)
= 8 23/21
= 9 2/21

8) 10 3/7 + 2/6
= 10 ( 18/42 + 14/42 )
= 10 32/42
= 10 16/21

9) 10 3/7 + 7/6
= 10 ( 18/42 + 49/42 )
= 10 67/42
= 11 25/42

10) 1/12 + 11 2/20
= 11 ( 20/240 + 24/248
= 11 44/240
= 11 11/60