Question

tính nhanh

3/11*7/19+3/11*8/19-4/19:11/3

ai nhanh cho tích

 

 

Answer 1

it's so hard

Answer 2

\(\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{9}:\frac{11}{3}\)

\(=\frac{3}{11}\times\frac{7}{9}+\frac{3}{11}\times\frac{8}{9}-\frac{4}{9}\times\frac{3}{11}\)

\(=\frac{3}{11}\times\left(\frac{7}{9}+\frac{8}{9}-\frac{4}{9}\right)\)

\(=\frac{3}{11}\times\frac{11}{9}\)

\(=\frac{1}{2}\)

Answer 3

= 3/11 * 7/19 + 3/11 * 8/19 - 4/19 * 3/11

= 3/11 * ( 7/19 + 8/19 - 4/19 )

=  3/11 * 11/19

=         3/19

         mk trả lời nhanh nhất k cho mk nha bạn

Answer 4

mk làm lộn đề

\(\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{19}:\frac{11}{3}\)

\(=\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{19}\times\frac{3}{11}\)

\(=\frac{3}{11}\times\left(\frac{7}{19}+\frac{8}{19}-\frac{4}{19}\right)\)

\(=\frac{3}{11}\times\frac{11}{19}\)

\(=\frac{3}{19}\)

Answer 5

\(=\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{9}\times\frac{3}{11}\)

\(=\frac{3}{11}\times\left(\frac{7+8-4}{19}\right)\)

\(=\frac{3}{11}\times\frac{11}{19}\)

\(=\frac{3}{19}\)

Answer 6

3/11 * 7/19 + 3/11 * 8/19 - 4/19 : 11/3

= 3/11 * 7/19 + 3/11 * 8/19 - 4/19 * 3/11

= 3/11 * ( 7/19 + 8/19 - 4/19 )

= 3/11 * 11/19

= 3/19

=

Answer 7

\(\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{19}:\frac{11}{3}\)

\(=\frac{3}{11}\times\frac{7}{19}+\frac{3}{11}\times\frac{8}{19}-\frac{4}{19}\times\frac{3}{11}\)

\(=\frac{3}{11}\times\left(\frac{7}{19}+\frac{8}{19}-\frac{4}{19}\right)\)

\(=\frac{3}{11}\times\frac{11}{19}\)

\(=\frac{3}{19}\)

Hok Tốt!!!