2 1/3+ 1/2=

3/4.1/5.10/9=

3/7.14.1/6=

(31/7 ). (51/4 ) =

Respuestas

Respuesta dada por: princess251111
1

Respuesta:

1. - 2 \times \frac{1}{3}  +  \frac{1}{2}  =  \frac{7}{3}  +  \frac{1}{2} =  \frac{2(7) + 3(1)}{6} =  \frac{14 + 3}{6}   =  \frac{17}{6} =  2 \times \frac{5}{6} \\  2. - \frac{3}{4}  \times  \frac{1}{5} \times  \frac{10}{9} =  \frac{(3)(1)(10)}{(4)(5)(9)} =  \frac{30}{180} =  \frac{1}{6}     \\ 3. -  \frac{3}{7} \times  \frac{14}{1}  \times  \frac{1}{6}   =  \frac{(3)(14)(1)}{(7)(1)(6)}  =  \frac{42}{42}  = 1 \\ 4. -  \frac{31}{7} \times  \frac{51}{4}     =  \frac{(31)(51)}{(7)(4)}  =  \frac{1581}{28}  = 56 \times \frac{13}{28}

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