1.) 2 1/9 + 2 2/3 - 5/6 = 2.) 1 5/8 + 2 3/4 - 2 1/3 = 3.) 6/7 + 4 2/3 - 2 9/21 = pakai cara ya!

1) 2 1/9 + 2 2/3- 5/6= 19/9 + 8/3- 5/6
= 38/18 + 48/18-15/18
= 71/18
= 3 17/18

2) 1 5/8 + 2 3/4- 2 1/3 =19/8 + 8/3- 5/6
= 39/24 + 66/24- 56/24
= 49/24
= 2 1/24

3) 6/7 + 4 2/3- 2 9/21= 6/7 + 14/3-51/ 21
= 18/21 + 98/21- 51/21
= 65/21
= 3 2/21

(SEMOGA MEMBANTU GUYS)