Question

aranjati in ordine crescatoare fractiile
3/8, 5/6, 9/10, 7/12, 11/15, 3/4, 17/20, 23/30, 31/40
va rog frumos imi trebuie pe miine dau 30pnct

Answer 1

Ca sa le compari, trebuie ori aduse la acelasi numitor, ori calculate.
Eu o sa-ti arat cum sa le compari aducandu-le la acelasi numitor:
Cel mai mic multiplu comun (8, 6, 10, 12, 15, 4, 20, 30, 40) = 120
$\frac{3}{8} = \frac{45}{120}$
$\frac{5}{6} = \frac{100}{120}$
$\frac{9}{10} = \frac{108}{120}$
$\frac{7}{12} = \frac{70}{120}$
$\frac{11}{15} = \frac{88}{120}$
$\frac{3}{4} =\frac{90}{120}$
$\frac{17}{20} = \frac{102}{120}$
$\frac{23}{30}= \frac{92}{120}$
$\frac{31}{40} = \frac{93}{120}$
Acum ca toate fractiile au numitorul 120, trebuie doar sa comparam ce e sus si vom obtine rezultatul:
3/8 < 7/12 < 11/15 < 3/4 < 23/30 < 31/40 < 5/6 < 17/20 < 9/10