\(\frac{33}{77}=\frac{3}{7}=\frac{24}{56}\)
\(\frac{99}{84}=\frac{33}{28}=\frac{66}{56}\)
Theo đề ta có : 24/56 < x < 66/56
=> x = { 25/56 ; 26/56 ;27/56 ;....; 65/56}
Vậy có 41 phân số
co bao nhieu phan so lon hon 33/77 va be hon 99/84 ma co mau so la 56
co bao nhieu phan so lon hon 33/77 va be hon 99/84 ma co mau so la 56
a 41
b 40
c 49
d 50
co bao nhieu phan so lonhon 33/77 va be hon 99/84 ma co mau so la 56
co bao nhieu phan so lon hon 1 va co tong cua tu so va mau so la 2000
co bao nhieu phan so lon hon 1 co tong cua tu so va mau so va mau so bang 2000
co bao nhieu so thap phan co 2 chu so o hang thap phan lon hon 99 va nho hon 100
co bao nhieu phan so lon hon co tong cua tu so va mau so bang 2000
cac ban nao biet giai bai toan nay k?De bai nhu sau:viet 3 phan so khac nhau co cung mau so ma moi phan so do:1 la lon hon phan so 1/5,2 la be hon phan so 1/4 va 3 la lon hon phan so 1/5,be hon phan so 1/4
tim cac phan so lon hon 5 phamn 6 va be hon 11 phan 12 ma co mau so la 48