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\(\dfrac{18}{30}=\dfrac{18:6}{30:6}=\dfrac{3}{5}\\ \dfrac{48}{96}=\dfrac{48:48}{96:48}=\dfrac{1}{2}\\ \dfrac{64}{720}=\dfrac{64:16}{720:16}=\dfrac{4}{45}\\ \dfrac{42}{98}=\dfrac{42:14}{98:14}=\dfrac{3}{7}\)
\(\dfrac{18}{30}=\dfrac{3}{5};\dfrac{48}{96}=\dfrac{1}{2};\dfrac{64}{720}=\dfrac{4}{45};\dfrac{42}{98}=\dfrac{3}{7}\)
\(\frac{98}{100}=\frac{49}{50}\)
\(\frac{123123}{234234}=\frac{41}{78}\)
\(\frac{20182018}{20152019}\approx1.001488635\)
82/80=82:2/80:2=41/40
36/120=36:12/120:12=3/10
49/98=49:49/98:49=1/2
105/315=105:3/315:3=35/105=35:5/105:5=7/21 hoặc 105/315=105:15/315:15=7/21
114/1152=114:2/1152:2=57/576
t mình nha
98/100 = 49/50 1212/1313 = 12/13
123123/234234 = 123/234 20182018/20152015 = 2018/2015
a)
`6/9=2/3`
`6/24=1/4`
`48/96=1/2`
`42/98=3/7`
b)
`24/36=2/3`
`18/30=3/5`
`15/120=1/8`
`80/240=1/3`
a)\(\dfrac{6}{9}=\dfrac{6:3}{9:3}=\dfrac{2}{3}\)
\(\dfrac{6}{24}=\dfrac{6:6}{24:6}=\dfrac{1}{4}\)
\(\dfrac{48}{96}=\dfrac{48:48}{96:48}=\dfrac{1}{2}\)
\(\dfrac{42}{98}=\dfrac{42:14}{98:14}=\dfrac{3}{7}\)
b)\(\dfrac{24}{36}=\dfrac{24:12}{36:12}=\dfrac{2}{3}\)
\(\dfrac{18}{30}=\dfrac{18:6}{30:6}=\dfrac{3}{5}\)
\(\dfrac{15}{120}=\dfrac{15:15}{120:15}=\dfrac{1}{8}\)
\(\dfrac{80}{240}=\dfrac{80:80}{240:80}=\dfrac{1}{3}\)
`97/98` nó là phân số tối giản nên ko rút gọn dc
Nếu mình không nhầm thì phân số trên đã tối giản rồi ạ