Question

Cum rezolv 1supra 15 plus 5supra 6 plus 1 supra 9 . Va rog explicatii

Answer 1

$\frac{1}{15}+ \frac{5}{6} + \frac{1}{9}=$
Gasim numitorul comun si vom vedea ca e 90.
90:15=6
90:6=15
90:9=10
$\frac{6+75+10}{90}= \frac{91}{90}$

Answer 2

[tex] \frac{1}{15} + \frac{5}{6} + \frac{1}{9}= \frac{6}{90} + \frac{75}{90} + \frac{10}{90} = \frac{6+75+10}{90} = \frac{91}{90} [/tex]