=99:100

ai k minh minh k lai cho

đáp số: 99:100

A = \(\frac{1}{1}-\frac{1}{1000}=\frac{999}{1000}\)

Tick mình nhé !

=3/10+13/10

=16/10

\(=\frac{8}{5}=1\frac{3}{5}\)

k mình nha

\(\frac{2}{6}+\frac{4}{14}+\frac{22}{12}+16+\frac{2}{9}\)

\(=\frac{1}{3}+\frac{2}{7}+\frac{11}{6}+16+\frac{2}{9}\)

\(=\frac{42}{126}+\frac{36}{126}+\frac{231}{126}+\frac{28}{126}+16\)

\(=\frac{337}{126}+16\)

\(=18\frac{85}{126}\)

chúc bạn học tốt

Đ/S = \(18\frac{85}{126}\)

Chúc bạn hk tốt!! >> NGUYỄN DIỆU HẰNG<<  

=1/10+1/10+3/10+4/10+5/10+6/10+7/10+8/10+9/10

=1/10+45/10

=46/10=23/5

\(\frac{6}{5}\)x 5 - \(\frac{17}{5}\)= \(\frac{30}{5}\)- \(\frac{17}{5}\)=\(\frac{13}{5}\)

ta có:4/5*5+4\10*5)-17/5

=20/5+20/10)-17/5

=50/10-17/5

=10/1+(-17)/5

=-33/5

mk nghĩ là vậy !nếu mk làm sai thìcho mk xin lỗi ! đúng thì tích cho mk!nếu k hiểu hỏi lại nha

a)\(\frac{2}{3}\)

b)\(\frac{3}{4}\)

\(a,\frac{1}{2}\times\frac{4}{5}\div\frac{6}{10}\)

\(=\frac{2}{5}\div\frac{6}{10}\)

\(=\frac{2}{5}\times\frac{10}{6}\)

\(=\frac{2}{3}\)

\(b,\frac{24}{35}\div\left(\frac{4}{5}\times\frac{8}{7}\right)\)

\(=\frac{24}{35}\div\frac{32}{35}\)

\(=\frac{24}{35}\times\frac{35}{32}\)

\(=\frac{3}{4}\)

chắc là 51 nhé!!!!!!!!!!!!!!!!!!!!!!!!!

\(1-2+3-4+5-6+.......+97-98+99-100+101\)

\(=\left(1-2\right)+\left(3-4\right)+\left(4-5\right)+.....+\left(97-98\right)+\left(99-100\right)+101\)

\(=50.\left(-1\right)+101=51\)