1 5/7 *3/4 10/11:1 1/3 3.57*4.1+2.43*4.1 3.42:0.57*8.4-6.8
tinh bang cach thuan tien nhat
a. 27 phan 11 nhan 22 phan 17 nhan 68 phan 63.
b. 5 phan 14 phan 7 phan 13 nhan 26 phan 25.
tinh bang cach thuan tien nhat
a 21/11 * 22/17 * 68/63
5/14 * 7/13 * 26/25
cac ban giup mik nha mik cam on nhieu
21/11 × 22/17× 68/63
5/14 × 7/13 × 26/25
Tinh thuab tien nhe
1
a . 21 |11 * 22 |17 * 68 |63 .
b . 5 | 14 * 7 | 13 * 26 | 25 .
a] 21/11 * 22/17 * 68/63
b] 5/14 * 7/13 * 26/25
tinh bang cach thuan tien 3/5 x 7/9 + 11/9 x 3/5 - 3/10. B 14/13 : 1/2 + 3/13 x2 -2 x 7/13
A) 21/11 * 22/17 * 68/63
B)5/14 * 7/13 * 26/25
Tính :
10/11 : 1 1/3
3,42 : 0,57 x 8,4 - 6,8
2.Tính bằng cách thuận tiện nhất
a).21/11 x 22/17 x 68/63
b). 5/14 x 7/13 x 26/25