8/15 < 9/15; 10/15; 11/15; 12/15; 13/15; 14/15; 15/15; 16/15
\(\frac{9}{15};\frac{10}{15};\frac{11}{15};\frac{12}{15};\frac{13}{15};\frac{14}{15};\frac{15}{15};\frac{16}{15}\)
Viet phan so \(\frac{2}{3}\) thanh tich cua hai phan so co mau so bang nhau va lon hon 4 va nho hon 8, co tu so nho hon 8. Ket qua
a.tim phan so co mau la 20 sao cho phan so do lon hon 4/13 va nho hon 5/13
b.tim phan so co mau bang 20 sao ho phanso do lon hon 5/7 va nho hon 5/6
co bao nhieu phan so bang phan so -15/20 co mau la so nguyen duong nho hon 30
tim so tu nhien nho hon 500 biet rang khi chia cho 8 10 15 20 co so du theo thu tu la 5 7 12 17 va chia het cho 51
Tìm hai ps co mau bang 21, biet rang no lon hon \(\frac{-5}{6}\)va nho hon\(\frac{-5}{7}\)
Tim phan so co tong bang 4 biet rang phan so do lon hon 13/17 va nho hon 13/15 {{ai giai dc to cho 1 tick. the do}
tim ca phan so co mau la 11 va lon hon \(\frac{2}{11}\)nhung nho hon \(\frac{49}{77}\)
Tim mot phan so lon hon \(\frac{2}{7}\)nhung nho hon \(\frac{3}{7}\)va co mau la 5
Viet phan so 2/3 thanh tichcua hai phan soco mau so bang nhau lon hon 4 va nho hon 8 , co tu so nho hon 8 .
Ket qua la : ................
giup minh nhanh nhe !
ai nhanh minh tick cho !
