Răspuns:
⁴⁾1/12 < ³⁾5/16
12=3·2²
16=2⁴
cmmmc(12,16)=2⁴·3=16·3=48 → numitorul comun
4/48 < 15/48
_________________
³⁾5/8 > ²⁾6/12
8=2³
12=3·2²
cmmmc(8,12)=2³·3=8·3=24 → numitorul comun
15/24 > 12/24
__________
⁵⁾7/12 < ³⁾15/20
12=3·2²
20=2²·5
cmmmc(12,20)=2²·3·5=60 → numitorul comun
35/60 < 45/60
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³⁾11/12 > ²⁾6/18
12=3·2²
18=2·3²
cmmmc(12,18)=2²·3²=4·9=36 → numitorul comun
33/36 > 12/36
_________________________
³⁾3/20 > ²⁾2/30
9/60 > 4/60
