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El453
a fost răspuns

Calculati:
[tex]2 \frac{4}{5} [/tex] : [tex](1 \frac{3}{4} + \frac{7}{10} )[/tex]

Răspuns :

Renatemambouko
2 4/5:(1 3/4 +7/10)=
=14/5 :(7/4+7/10)=
=14/5 :(7×5+7×2)/20=
=14/5 :(35+14)/20=
=14/5 × 20/49=
=8/7

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