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234 : 54 =216( dư 18 )
7654 : 879 =7032( dư 622)
9865 : 54 =9828( dư 37 )
1234 : 23 =1219( dư 15 )
234 : 54 =216( dư 18 )
7654 : 879 =7032( dư 622)
9865 : 54 =9828( dư 37 )
1234 : 23 =1219( dư 15 )
HT
9876 : 90 = \(\dfrac{1646}{5}\).
543 : 98 = \(\dfrac{543}{98}.\)
432 x 67 = 28944.
8976 : 87 = \(\dfrac{2992}{29}.\)
\(8765\div90=\dfrac{1753}{18}\)\(=97,4\)
\(1325\times65=86125\)
\(6543\div89=73,52\)
\(\dfrac{12}{6}+\dfrac{15}{7}=2+\dfrac{15}{7}=\dfrac{14}{7}+\dfrac{15}{7}=\dfrac{29}{7}\\ \dfrac{12}{13}-\dfrac{8}{9}=\dfrac{108}{117}-\dfrac{104}{117}=\dfrac{4}{117}\\ \dfrac{43}{54}+\dfrac{76}{8}=\dfrac{43}{54}+\dfrac{19}{2}=\dfrac{43}{54}+\dfrac{513}{54}=\dfrac{556}{54}=\dfrac{278}{27}\)
\(\dfrac{12}{6}+\dfrac{15}{7}=\dfrac{84}{42}+\dfrac{90}{42}=\dfrac{174}{42}=\dfrac{29}{7}\)
\(\dfrac{12}{13}-\dfrac{8}{9}=\dfrac{108}{117}-\dfrac{104}{117}=\dfrac{4}{117}\)
\(\dfrac{43}{54}+\dfrac{76}{8}=\dfrac{344}{432}+\dfrac{4104}{432}=\dfrac{4448}{432}=\dfrac{278}{27}\)
75,1
\(\dfrac{453}{76}\)
503556660
6759:90=751/10
453:76=453/76
65790x7654=503556660