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Rapunsul calculului [tex] \frac{2}{5} - ( \frac{1}{10} [/tex] ₊[tex] \frac{1}{15} )[/tex]

Răspuns :

2/5-[3/30+2/30]
⇒2/5-5/30
⇒12/30-5/30
⇒7/30;
2/5-(1/10+1/15)=?
2/5-(3/30+2/30)=?
12/30-5/30=7/30

Sper ca te-am ajutat!