Question

\(\frac{69}{77}\)X \(\frac{21}{11}\)

\(\frac{69}{77}\): \(\frac{21}{11}\)

\(\frac{69}{77}\)- \(\frac{21}{11}\)

\(\frac{69}{77}\)+ \(\frac{21}{11}\)

Answer 1

\(\frac{69}{77}\times\frac{21}{11}=\frac{69\times21}{77\times11}=\frac{1449}{847}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{69}{77}\times\frac{11}{21}=\frac{69\times11}{77\times21}=\frac{759}{1617}=\frac{23}{49}\)

\(\frac{66}{77}-\frac{21}{11}=\frac{66}{77}-\frac{147}{77}=\frac{66-147}{77}=\frac{-81}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{69}{77}+\frac{147}{77}=\frac{69+147}{77}=\frac{216}{77}\)

~ Hok tốt ~

Answer 2

\(\frac{69}{77}.\frac{21}{11}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{23}{49}\)

\(\frac{69}{77}-\frac{21}{11}=-\frac{78}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{216}{77}\)

***

Answer 3

Bài làm

\(\frac{69}{77}x\frac{21}{11}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{69}{77}x\frac{11}{21}=\frac{23}{49}\)

\(\frac{69}{77}-\frac{21}{11}=\frac{69}{77}-\frac{147}{77}=-\frac{78}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{69}{77}+\frac{147}{77}=\frac{216}{77}\)

# Chúc bạn học tốt #

Answer 4

\(\frac{69}{77}\times\frac{21}{11}=\frac{69\times21}{77\times11}=\frac{1449}{847}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{69}{77}\times\frac{11}{21}=\frac{759}{1617}=\frac{23}{49}\)

\(\frac{69}{77}-\frac{21}{11}=\frac{69}{77}-\frac{147}{77}=\frac{-81}{77}\)

Answer 5

Trả lời:

\(\frac{69}{77}\times\frac{21}{11}=\frac{69\times21}{77\times11}=\frac{201}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{69}{77}\times\frac{11}{21}=\frac{23}{49}\)

\(\frac{69}{77}-\frac{21}{11}=\frac{-78}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{216}{77}\)

Answer 6

\(\frac{69}{77}\times\frac{21}{11}=\frac{207}{121}\)

\(\frac{69}{77}\div\frac{21}{11}=\frac{23}{49}\)

Answer 7

Trả lời:

Câu 1 :\(\frac{201}{121}\)

Câu 2 : \(\frac{49}{23}\)

Câu 3 :\(\frac{-78}{77}\)

Câu 4:\(\frac{216}{77}\)

~Hok tốt~