Răspuns:
⁶⁾3/5=18/30
(111/51)⁽³=37/17
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2) 7/11+3/11=10/11
30/17-13/17=17/17=1
³⁾3/5+7/15=9/15+7/15=16/15
¹⁴⁾2/3+²¹⁾5/2+⁶⁾1/7=28/42+105/42+6/42=139/42
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3) 4·3/5=12/5
13/12·8/39=2/91)
29/9:29/81=29/9·81/29=9
15/20·27/5·4/81=1/5
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4) (2/5)⁷⁻²=(2/5)⁵=2⁵/5⁵
(4/3)¹⁰ˣ³:(4/3)¹³=(4/3)³⁰⁻¹³=(4/3)¹⁷
(2/7)¹⁰·(2/7)²:(2/7)¹¹=(2/7)¹⁰⁺²⁻¹¹=(2/7)¹=2/7
