6 1/4:8-3 2/3· 5 1/2+2 2/5·4 7/12=
1)
6 1/4:8=25/4·1/8=25/32
2)
3 2/3·5 1/2=11/3·11/2=121/6
3)
2 2/5·4 7/12=12/5·55/12=11
4)
25/32-121/6= 25/32-20 1/6=-20 1/6+25/32=-(20-59/96)=-19 37/96
5)
-19 37/96+11=-19-37/96+11=(-19+11)-37/96=-8-37/96=-8 37/96
Ответ:
<u>17</u>
Пошаговое объяснение:
решение на фото.................
Миша - 30%
Саша - 50%
Ваня - 20%
24*100/80 = 30
40*100/80 - 50
16*100/80 - 20
30+50+20 = 100%(проверка)
Пример: 1)2)
Jack can buy some crisps
Jack can't buy crisps and cola
Пример:3)4)
Becky can buy a crisps, cola and news.