1)19 5/6 + 7 9/16 - 15 2/3 - 9 3/8 = 2 17/48
19 5/6 + 7 9/16 - 15 2/3 - 9 3/8 = 119/6 + 121/16 - 47/3 - 75/8
НОК(6,16,3,8) = 48
(119*8 + 121*3 - 47*16 - 75*6)/48 = (952 + 363 - 752 - 450)/48 = 113/48 = 2 17/48
2 17/48 = 2.3541666667<span>
</span>
10000-9998=2
887-885=2
675-673=2
947-945=2
9793-9791=2
-640 |___16____
64 40
0
Ответ: 640:16=40