Question

efectuati
2 supra 13 + 5 supra 26
7 supra 10 + 13 supra 100
8 supra 25 + 12 supra 50
9 supra 36 + 5 supra 72


55 p si coroana​

Answer 1

$\frac{2}{13} + \frac{5}{26} = \frac{4}{26} + \frac{5}{26} = \frac{4 + 5}{26} = \frac{9}{26 }$

$\frac{7}{10} + \frac{13}{100} = \frac{70}{100} + \frac{13}{100} = \frac{70 + 13}{100} = \frac{83}{100}$

$\frac{8}{25} + \frac{12}{50} = \frac{16}{50} + \frac{12}{50} = \frac{16 + 12}{50} = \frac{28}{50} = \frac{14}{25}$

$\frac{9}{36} + \frac{5}{72}$=

18/72+5/72=18+5/72=25/72.