\(\dfrac{8}{7};\dfrac{7}{8}\)

8/7 và 7/8

Rút gọn thành \(\dfrac{8}{7},\dfrac{7}{8}\)

quá to nên tự rút r tự so sánh

A;18/27=2/3;24/56=3/7

Vay2/3<3/7

B36/90=2/5;50/125=2/5

2/5=2/5

C121/77=11/7;88/64=11/8

vai11/7co mau be hon 11/8 ma tu bang nhau nen

11/7>11/8

D52/91=4/7,60/84=5/7

phan so co mau bang nhau tu cua 5/7 lon hon4/7 nen 4/7<5/7

tich nha

\(\dfrac{64}{1000}=\dfrac{64:8}{1000:8}=\dfrac{8}{125}\)

-32/45

\(\dfrac{-64}{90}=\dfrac{-32}{45}\)

\(\dfrac{-64}{90}=\dfrac{-64\div2}{90\div2}=\dfrac{-32}{45}\)

\(\frac{48}{64}\)Rút gọn = \(\frac{3}{4}\)

48/64=6/8

nha<<<

\(\frac{48}{64}=\frac{48:8}{64:8}=\frac{6}{8}\)

\(\frac{64}{100}=\frac{16}{25}\)

k nha

Trả lời

64/100=16/25

hok tốt

...

64/100 = 16/25

\(\frac{36}{64}=\frac{36:4}{64:4}=\frac{9}{16}\)

            \(~~~Hok\)tốt\(~~~\)

9/16

let's be friends

9/16 nha

\(\dfrac{90}{120}=\dfrac{30.3}{30.4}=\dfrac{3}{4}\)

\(\dfrac{15}{25}=\dfrac{5.3}{5.5}=\dfrac{3}{5}\)

\(\dfrac{18}{45}=\dfrac{9.2}{9.5}=\dfrac{2}{5}\)

\(\dfrac{36}{64}=\dfrac{4.9}{4.16}=\dfrac{9}{16}\)

\(\dfrac{32}{72}=\dfrac{8.4}{8.9}=\dfrac{4}{9}\)

\(\dfrac{84}{49}=\dfrac{7.12}{7.7}=\dfrac{12}{7}\)

\(\dfrac{90}{120}=\dfrac{3}{4};\dfrac{15}{25}=\dfrac{3}{5};\dfrac{18}{45}=\dfrac{2}{5};\dfrac{36}{64}=\dfrac{9}{16};\dfrac{32}{72}=\dfrac{4}{9};\dfrac{84}{49}=\dfrac{12}{7}\)

\(\dfrac{3}{4},\dfrac{3}{5},\dfrac{2}{5},\dfrac{9}{16},\dfrac{4}{9},\dfrac{12}{7}\)