tolong jawab nomor 10,11,12,13, pakai cara

10. 2,86-1 5/8=286/100-13/8=2860/1000-1625/1000=1235/1000(c)
11. 65%:7/10:3 5/7 =65/100*7/26=65/10*1/26=1/4
13. 5,8=58/10=5 8/10=5 4/5
14.b
*=di kali