cac phan so 1/3 14/15 10/10 6/15
1 tim cac so nguyen x,y biet x/7=6/21 -5/y=20/28 1/2=x/12 x/8=-28/32 3/y=12/24 3/4=15/y 2 viet 3 phan so bang phan so -10/15
phan so bang phan so 21/15 la phan so nao trong day 14/10 ; 15/6 ; 7/5 la
tim 1 phan 2 ; 1 phan 3 ; 1 phan 5 ; 1 phan 6 ; 1 phan 10 ; 1 phan 12 cua 60
tim 15% ; 20%; 50%; 75% cua 60
tim cac so ma 60 chia het cho so do.
viet cac phan so sau day thanh cac phan so co mau so la 10:
1/2 , 2/5 , 1/4 , 18/20 , 15/50 , 10/25 .
1/2 = 1 x 5/ 2 x 5 = 5/10
2/5 = 2 x 2/ 5 x 2 = 4/10
18/20 = 18 : 2/ 20: 2 = 9/10
15/50 = 15 : 5/ 50 : 5 = 3/10
Mình làm được tới đây thôi. Phân số 10/25 thì chỉ có thể rút gọn cho 5 rồi nhân 2 thôi
rat cam on ban neu ban khong giai giup minh thi minh cung chang biet lam the nao
1 tim cac so nguyen x,y biet
x/7=6/21
-5/y=20/28
1/2=x/12
x/8=-28/32
3/y=12/24
3/4=15/y
2 viet 3 phan so bang phan so -10/15
tim 1 phan 2 ; 1 phan 3 ; 1 phan 5 ; 1 phan 6 ; 1 phan 10 ; 1 phan 12 cua 60
tim 15% ; 20%; 50%; 75% cua 60
tim cac so ma 60 chia het cho so do.
giúp mình nhanh nha mình đang cần gấp thank
tim cac phan so bang nhautrong cac phan so day :2:5 ; 4:7; 6:15; 8:14; 16:28; 24:60;
viet cac phan so sau day thanh cac phan so co mau so chung la 10:
1/2 , 2/5 , 1/4 , 18/20 , 15/50 , 10/25 .
1/2=5/10;2/5=4/10;1/4=?;18/20=9/10;15/50=3/10;10/25=4/10
\(\frac{5}{10},\frac{4}{10},\frac{25}{100},\frac{90}{100},\frac{30}{100},\frac{40}{100}\)
tim phan so lon nhat sao cho khi chia cac phan so 28/15 , 21/10 , 49/84