\(\frac{1}{5}+\frac{8}{15:y}=\frac{1}{2}\)
\(\frac{8}{15}:y=\frac{1}{2}-\frac{1}{5}\)
\(\frac{8}{15}:y=\frac{3}{10}\)
\(y=\frac{8}{15}:\frac{3}{10}\)
\(y=\frac{16}{9}\)
Vậy suy ra y bằng \(\frac{16}{9}\)
1/5+8/15:y=1/2
TÌM Y
1/5 + 8/15 : y = 1/2
4/11 x y - 6/11 = 2/5
LƯU Ý : 1/5 = 1 phần 5 tương tự các câu khác
1 , 3/4 x 8 - y = 1 2/5
2, 3/4 : 2/4 + y = 19/15
Tính bằng cách thuận tiên nhất:
1):(3/4 x 5/97 + 1/9 x 13/47) x (1/5 - 7/25 x 5/7)
2): 8/17 x 4/15 + 8/17 x 22/15 - 8/15 x 9/17
3): 2021/2 x 1/3 + 4042/4 x 1/5 + 6063/3 x 22/15
4); 4/7 x 2/13 + 8/13 :7/4 + 4/7 : 13/2 + 4/7 x 1/13
5): 2022 x 2021 - 1/ 2021 + 2022 x 2020
6): 18 x 123 + 9 x 4567 x 2 + 3 x 5310 x 6 / (2 + 4 + 6 + 8 + ...+20 + 22) + 48
7): A= 2021 x 2021 x 202020 - 2020 x 2020 x 20212021 / 2020 x 20192019
1/5 + 8/15 : y = 1/2
4/11 x y -6/11 = 2/5
Ai có nick zing kết bạn với mình nhe
5/15-1/6*2/5
8/24+3/4:1/8
1/7:2/8-1/7
Tính giá trị biểu thức
tính
15×3/5
4/2×1/2
6/25×5/8
15:1/3
35:1/5
4/5:1/2
6/25:5/8
Tính :
2/5 + 11/15 =
7/8 - 7/9 =
11/13 x 26/31 =
16/24 : 4 =
30 : 6/5 =
9/16 : 4 =
1/2 : 1/3 x 8/15 =
10/3...1/3. 10/6...3/8. 17/4...5/6. 1/3...5/9 5/8...7/5 3/4...15/6 10/9...10/11 7/8...7/2 15/9...3/8 15/7...15/8 16/5...16/7 25/11...1
