tìm số tự nhin x bt
a.\(x-\)\(\dfrac{5}{14}=\dfrac{3}{7}-\dfrac{1}{14}\) b.\(\dfrac{2}{9}:x=\dfrac{1}{2}+\dfrac{2}{3}\) c.\(\dfrac{6}{32:x}=\dfrac{12}{16}\)
khoanh vào phân số bằng \(\dfrac{4}{9}\) \(\dfrac{12}{18}\), \(\dfrac{6}{10}\), \(\dfrac{16}{27}\), \(\dfrac{24}{54}\), \(\dfrac{20}{36}\)
98775 - 32 x 85 / 67500 - 24 x 236 / 568 + 101598 : 287 / 6875 + 980 -180 \(\dfrac{2}{5}+\dfrac{3}{10}-\dfrac{1}{2}\) / \(\dfrac{8}{11}+\dfrac{8}{33}\) x \(\dfrac{3}{4}\) / 7/9 x 3/14 :5/8 / \(\dfrac{5}{12}-\dfrac{7}{32}:\dfrac{21}{16}\)
ÉT O ÉT
\(\dfrac{4}{9}\)-\(\dfrac{3}{14}:\dfrac{4}{7}\) lời giải chi tiết hộ mik với help;-;
tính thuận tiện:
\(\dfrac{4}{5}+\dfrac{2}{3}+\dfrac{1}{5}+\dfrac{1}{3}\) \(\dfrac{17}{12}+\dfrac{29}{7}-\dfrac{8}{7}+\dfrac{7}{12}\) \(\dfrac{9}{15}+\dfrac{16}{7}+\dfrac{2}{5}-\dfrac{1}{7}-\dfrac{2}{14}\)
\(\dfrac{2}{5}+\dfrac{6}{9}+\dfrac{7}{4}+\dfrac{3}{5}+\dfrac{1}{3}+\dfrac{1}{4}\)
mik sẽ chỉ tick 3 bn xong trước phải chi tiết rõ ràng
Phân số nào nhỏ nhất trong các phân số sau: \(\dfrac{6}{7}\);\(\dfrac{8}{7}\);\(\dfrac{12}{14}\);\(\dfrac{3}{4}\)
A. \(\dfrac{6}{7}\) B. \(\dfrac{8}{7}\) C. \(\dfrac{12}{14}\) D. \(\dfrac{3}{4}\)
a.\(\dfrac{x}{y}\) x \(\dfrac{3}{4}\) = \(\dfrac{5}{6}\) + \(\dfrac{1}{3}\)
b.\(\dfrac{7}{9}:\dfrac{x}{y}=\dfrac{10}{7}-\dfrac{13}{14}\)
\(\dfrac{3}{5}+\dfrac{1}{2}+\dfrac{8}{15}\)
\(\dfrac{6}{9}+\dfrac{14}{18}-\dfrac{5}{6}\)
\(\dfrac{9}{20}-\dfrac{3}{5}:\dfrac{4}{1}\)
\(\dfrac{1}{6}+\dfrac{2}{3}\) x \(\dfrac{8}{9}\)
so sánh với 1 :
\(\dfrac{1}{4444};\dfrac{3}{7};\dfrac{9}{5};\dfrac{7}{3};\dfrac{14}{15};\dfrac{16}{16};\dfrac{14}{11}\)
↑ \(\dfrac{1}{4}\) :>