👤

calculati
a) (2/7+3/5)-(1/7-2/5)+23/35
b) 7/15: (7/10×2/3)


VA ROG E URGENT DAU 30 DE PUNCTE​


Răspuns :

Răspuns:

Explicație pas cu pas:

a)(2/7+3/5)-(1/7-2/5)+23/35

31/35-(-9/35)+23/25

31/35+9/35+23/25

361/175

b)7/15:(7/10×2/3)

7/15:(7/5×1/3)

7/15:7/15

1

Sᴘᴇʀ ᴄᴀ ᴛᴇ-ᴀᴍ ᴀᴊᴜᴛᴀᴛ!