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PEunbin398
a fost răspuns

efectuati operațiile (dau coroana)

21,5-4,1(5)

13,25+5/8

-2 4/7 × 49/54

19/17÷(-76/102) ​


Răspuns :

21,5-4,1(5)=215/10-374/90=43/2-374/90=1561/90=17,3(4)
13.25+5/8=53/4+5/8=111/8
-24/7*49/54=-24*7/54=-4*7/9=-28/9