Respostas

2014-08-17T22:01:11-03:00
E aí João Victor,

para transformar um número misto em fração imprópria, basta multiplicar o inteiro pelo denominador e somar ao numerador:

 4\dfrac{3}{5}= \dfrac{4\cdot5+3}{5}= \dfrac{20+3}{5}= \dfrac{23}{5}\\\\\\
2 \dfrac{3}{7}= \dfrac{2\cdot7+3}{7}= \dfrac{14+3}{7}= \dfrac{17}{7}\\\\\\
1 \dfrac{1}{2}= \dfrac{1\cdot2+1}{2}= \dfrac{2+1}{2}= \dfrac{3}{2}\\\\\\
3 \dfrac{1}{4}= \dfrac{3\cdot4+1}{4} = \dfrac{12+1}{3}= \dfrac{13}{3} \\\\\\
12 \dfrac{7}{15}= \dfrac{12\cdot15+7}{15}= \dfrac{180+7}{15}= \dfrac{187}{15}

11 \dfrac{1}{3}= \dfrac{11\cdot3+1}{3}= \dfrac{33+1}{3}= \dfrac{34}{3}\\\\\\
5 \dfrac{2}{3}= \dfrac{5\cdot3+2}{3}= \dfrac{15+2}{3}= \dfrac{17}{3} \\\\\\
5 \dfrac{5}{12}= \dfrac{5\cdot12+5}{12}= \dfrac{60+5}{12}= \dfrac{65}{12}\\\\\\
2 \dfrac{4}{24}= \dfrac{2\cdot24+4}{24}= \dfrac{48+4}{24}= \dfrac{52}{24}\\\\\\
3 \dfrac{5}{18}= \dfrac{3\cdot18+5}{18}= \dfrac{54+5}{18}= \dfrac{59}{18}

Tenha ótimos estudos =))
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