Răspuns :

4/63+1/18-4/35=15/126-4/35=75-168/630=-93/630=-31/210
Miky93
4/63 +1/18 -4/25 *5/7=

4/63 +1/18 -4/35   aducem la acelasi numitor

(40+35-72)/630=  (75-72)/630= 3/630=  1/210

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