rút gọn mình 80/48 , 75/40 , 1212/1414 , 234234/456456 .
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\(\frac{1212}{3030}=\frac{2}{5}\)
\(\frac{32032}{48048}=\frac{2}{3}\)
\(\frac{456456}{234234}=\frac{76}{39}\)
\(\frac{1339}{1442}=\frac{13}{14}\)
#Châu's ngốc
\(\frac{6767}{8484}=\frac{67}{84}\)
\(\frac{234234}{456456}=\frac{234}{456}=\frac{39}{76}\)
a ) − 1212 − 2424 = ( − 1212 ) : ( − 1212 ) ( − 2424 ) : ( − 1212 ) = 1 2
b ) 120120 − 240240 = 120120 : ( − 120120 ) − 240240 : ( − 120120 ) = − 1 2
c) 1313 − 1414 = 1313 : ( − 101 ) − 1414 : ( − 101 ) = − 13 14
a) 33 66 = 33 : 33 66 : 33 = 1 2 b ) − 22 77 = − 22 : 11 77 : 11 = − 2 7
c ) 3030 6060 = 3030 : 3030 6060 : 3030 = − 1 2 d ) − 1212 − 2424 = ( − 1212 ) : ( − 1212 ) ( − 2424 ) : ( − 1212 ) = 1 2
e ) 120120 − 240240 = 120120 : ( − 120120 ) − 240240 : ( − 120120 ) = − 1 2
f ) 1313 − 1414 = 1313 : ( − 101 ) − 1414 : ( − 101 ) = − 13 14
1212/3030=1212:303/3030:303=4/10
32032/48048=32032:2002/48048:2002=16/21
456456/234234=456456:6006/234234:6006=76/39
16161616/38383838=16161616:2020202/38383838:2020202=8/19
80/48 = 5/3
75/40 = 15/8
1212/1414 = 6/7
234234/456456 = 39/76
\(\dfrac{80}{48}=\dfrac{5}{3}\) ; \(\dfrac{75}{40}=\dfrac{15}{8}\); \(\dfrac{1212}{1414}=\dfrac{6}{7}\); \(\dfrac{234234}{456456}=\dfrac{39}{76}\) .
Đáp án nhé !