\(\dfrac{121.75.130.169}{39.60.11.198}=\dfrac{11^2.3.5^2.2.5.13.13^2}{3.13.2^2.3.5.11.2.3^2.11}=\dfrac{2.3.5^3.11^2.13^3}{2^3.3^4.5.11^2.13}=\dfrac{5^2.13^2}{2^2.3^3}=\dfrac{4225}{108}\)

=\(\dfrac{121.75.130.169}{39.60.11.198}\)

=\(\dfrac{25.65.13.13}{13.30.18}\)

=\(\dfrac{5.5.65.13.13}{13.6.5.18}\)

=\(\dfrac{5.65.13}{6.18}\)

=\(\dfrac{65.65}{108}\)

=\(\dfrac{4225}{108}\)

Chúc bạn học tốt !

=4225/108

4225/108

=\(\frac{4225}{108}\)

bạn làm cách giải sẵn cho tớ

\(\left(1\right)\frac{121.75.130.169}{39.60.11.198}\)

\(=\frac{121.15.5.13.10.13.13}{13.3.15.4.11.18.11}\)

\(=\frac{121.5.13^2.10}{3.4.18.121}\)

\(=\frac{50.196}{12.18}\)

\(=\frac{9800}{216}=\frac{1225}{27}\)

\(\left(2\right)\frac{135.350+135.550}{900.100+35.900}\)

\(=\frac{135.\left(350+550\right)}{900.\left(100+35\right)}\)

\(=\frac{135.900}{900.135}=1\)

HOK TOT

1)=11^2.15.5.13.10.169/13.3.15.4.11.198

  =5.10.169/3.4.18

=8450/216=4225/108

2)=135.(350+550)/900.(100+35)

 =135.900/900.135=1

Trả lời:

\(\frac{121.75.130.169}{39.60.11.198}=\frac{11.11.15.5.65.2.13.13}{13.3.15.4.11.99.2}=\frac{11.5.65.13}{3.4.99}=\frac{4225}{108}\)

hok tốt!!

^^

= 11×11×15×5×39×3×2×65

      39×15×2×2×11×3×6×11

= 5×65

    2×6

= 325

     12

Học tốt~♡

\(\frac{121.75.130.169}{39.60.11.198}=\frac{11.11.3.25.10.13.13.13}{13.3.2.3.10.11.18.11}=\)\(\frac{25.169}{6.18}=\frac{4225}{108}\)

Tự chép đề bài nhé

=\(\frac{11.11.25.3.65.2.169}{3.13.2.30.11.18.11}\)

=\(\frac{25.65.13.13}{13.30.18}\)

=\(\frac{5.5.65.13.13}{13.6.5.18}\)

=\(\frac{5.65.13}{6.18}\)

=\(\frac{65.65}{108}\)

tự tính tiếp

\(\frac{121.75.130.169}{39.60.11.198} \)​= \(\frac{11^2.5^2.3.13.5.2.13^2}{3.13.2^2.3.5.11.2.3^2}\)

                                      = \(\frac{11.5^2.13^2}{2^2.3^3}\)