решите пожалуйста рациональным способом
4. 1//9 *5//8+3. 5//9*5//8+1.1//3*5//8
найдите значение выражения
(1.1//7-23//49) / 22//147-(0,6 / 3. 3//4)*2.1//2
//-дробь
/- это делить
1//9*5//8=5//72
3.5//9*5//8=32//9*5//8=20//9=2.2//9
1.1//3*5//8=4//3*5//8=5//3=1.2//3
5//72+2.2//9=5//72+20//9=5//72+160//72=165//72=2.21//72=2.7//24
2.7//24+1.2//3=2.7//24+1.16//24=3.23//24
Это первый пример
Второй:
1.1//7-23//49=8//7-23//49=56//49-23//49=33//49
6//10/3.3//4=6//10*4//15=6//25
33//49/22//147=33//49*147//22=9//2=4.1//2
6//25*2.1//2=6//25*5//2=6//10=3//5
4.1//2-3//5=4.5//10-6//10=3.15//10-6//10=3.9//10
по моему вот так
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1//9*5//8=5//72
3.5//9*5//8=32//9*5//8=20//9=2.2//9
1.1//3*5//8=4//3*5//8=5//3=1.2//3
5//72+2.2//9=5//72+20//9=5//72+160//72=165//72=2.21//72=2.7//24
2.7//24+1.2//3=2.7//24+1.16//24=3.23//24
Это первый пример
Второй:
1.1//7-23//49=8//7-23//49=56//49-23//49=33//49
6//10/3.3//4=6//10*4//15=6//25
33//49/22//147=33//49*147//22=9//2=4.1//2
6//25*2.1//2=6//25*5//2=6//10=3//5
4.1//2-3//5=4.5//10-6//10=3.15//10-6//10=3.9//10
по моему вот так