\(\frac{30}{54}+x=\frac{63}{54}\)
\(x=\frac{63}{54}-\frac{30}{54}\)
\(x=\frac{33}{54}=\frac{11}{18}\)
\(\frac{30}{54}+x=\frac{63}{54}\)
\(x=\frac{63}{54}-\frac{30}{54}\)
\(x=\frac{33}{54}=\frac{11}{18}\)
Đúng ghi Đ, sai ghi S vào chỗ chấm:
a) \(\frac{3}{7}+\frac{1}{3}x\frac{3}{7}=\frac{16}{21}x\frac{3}{7}=\frac{16}{49}\) ......
b)\(\frac{5}{9}+\frac{1}{5}x\frac{5}{6}=\frac{5}{9}x\frac{1}{6}=\frac{13}{18}\) ......
c)\(\frac{13}{9}-\frac{7}{9}:\frac{2}{3}=\frac{6}{9}:\frac{3}{2}=1\) ......
d)\(\frac{11}{8}-\frac{5}{8}:\frac{3}{4}=\frac{11}{8}-\frac{5}{8}x\frac{4}{3}=\frac{11}{8}-\frac{10}{24}=\frac{23}{24}\) ......
\(\frac{5}{9}x\frac{9}{6}x\frac{7}{3}x\frac{6}{5}x\frac{3}{8}\)=
người nào giải nhanh và đúng nhất tớ sẻ tích
Giúp mình nhé : Tính bằng 2 cách :
\(a,\left(\frac{6}{11}+\frac{5}{11}\right)x\frac{3}{7}\)
\(b,\frac{3}{5}x\frac{7}{9}+\frac{3}{5}x\frac{2}{9}\)
1. Tính nhanh
\(\frac{1}{2}\)x \(\frac{2}{3}\)x \(\frac{3}{4}\)x\(\frac{4}{5}\)x \(\frac{5}{6}\)x\(\frac{6}{7}\)x \(\frac{6}{7}\)x \(\frac{7}{8}\)x\(\frac{8}{9}\text{ }\)x \(\frac{9}{10}\)
\(\frac{1}{2}\): \(\frac{3}{2}\): \(\frac{5}{4}\)\(\frac{6}{5}\):\(\frac{7}{6}\):\(\frac{8}{7}\)
Tìm x
X+\(\frac{3}{8}\)=\(\frac{4}{3}\)
X x\(\frac{1}{9}\)=\(\frac{21}{8}\)
X-\(\frac{5}{4}=\frac{7}{6}\)
X :\(\frac{8}{3}=5\)
tính bằng hai cách
a) \(\left(\frac{6}{11}+\frac{5}{11}\right)x\frac{3}{7}\) b) \(\frac{3}{5}x\frac{7}{9}+\frac{3}{5}x\frac{2}{9}\)
c) \(\left(\frac{6}{7}-\frac{4}{7}\right):\frac{2}{5}\) d) \(\frac{8}{15}:\frac{2}{11}+\frac{7}{15}:\frac{2}{11}\)
giúp mik nha
x+\(\frac{3}{4}=\frac{5}{3}\) \(\frac{7}{5}:x=3\)\(2-x=\frac{4}{7}\)\(\frac{5}{6}\)x \(x=\frac{4}{9}\)
Tìm x:
a,\(\frac{x}{21}\)=\(\frac{4}{7}\)
b,\(\frac{5}{x}\)=\(\frac{9}{18}\)
c,\(\frac{16}{6}\)=\(\frac{x}{3}\)