Răspuns :
Răspuns:
²⁾3/18+³⁾7/12=6/36+21/36=27/36=3/4
18=2·3²
12=3·2²
cmmmc(18,12)=2²·3²=36 → numitorul comun
___________
=(1·15+1)/15·(4·16+5)/16=16/15·69/16=69/15=23/5
Răspuns:
²⁾3/18+³⁾7/12=6/36+21/36=27/36=3/4
18=2·3²
12=3·2²
cmmmc(18,12)=2²·3²=36 → numitorul comun
___________
=(1·15+1)/15·(4·16+5)/16=16/15·69/16=69/15=23/5