\(\frac{27}{10}=2,7\)
\(\frac{137}{100}=1,37\)
\(\frac{19}{10}=1,9\)
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tu lay vi du ban kinh, duong kinh de tinh chu vi hinh tron 10 bai ban kinh la so thap phan
tu lay vi du ban kinh, de tinh dien tich hinh tron 10 bai ban kinh la so thap phan
chuyen cac phan so thap phan thanh phan so thap phan ( theo mau);
162/10= 16 2/10= 16,2
a)7975/10
b)7409/100 ; 806/100
c) 64/10 ; 372/10 ; 1954/100
d) 1942/100; 6135/1000; 2001/1000
so thap phan
4/10 = bao nhieu so thap phan
6/10 =
9/100=
5/100
8/1000
7/1000
mot khu dat co dien tich 3 ha . nguoi ta su dung 3 / 10 dien tich de trong rau , 5/ 10 so dien tich de tha ca . hoi con lai bao nhieu hec ta ơ tra loi bang so thap phan ]
viet cac phan so thap phan sau duoi dang thap phan
a 1/10 1/100 1/1000 1/10000
b 84/10 225/100 6453/1000 25789/10000
giup minh ne 10 phep tinh nhan so thap phan, phan thap phan co 2 chu so
10 phep tinh phan thap phan co 3 chu so
10 phep tinh so thap cong so thap phan
10 phep tinh so thap phan tru so thap phan
khi viet so thap phan 0,100 duoi dang so thap phan, ban Lan viet 0,100 = 100/1000 ; ban My viet 0,100 = 10/100 ; ban Hung viet 0,100 = 1/100. Ai viet dung, ai viet sai. Tai sao ?
viet phan so 3/5 duoi dang phan so thap phan co mau so bang 10 va co mau so bang 100.
viet hai phan so thap phan moi tim duoc thanh hai so thap phan.
co the viet 3/5 thanh nhung so thap phan nao ?
Chuyen thanh so thap phan roi tim x:
x-25/100=28/10+123/10
x+21/10=11x5/10