Question

Va rog, e urgent.....cu demonstrație ​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

2¹/₃+5¹/

=(2x3+1  )/3 + (5x2+1)/2

= (6+1)/3+(10+1)/2

= ²⁾7/3+³⁾11/2

=14/6+33/6

= 47/6

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b)

3¹/₂- 2¹/₄

= (3x2+1)/2- (2x4+1)/4

= (6+1)/2- (8+1)/4

= ²⁾7/2-9/4

= 14/4-9/4

= 5/4

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c)

0,25+ (2x3+1) /3

= 25⁽²⁵/100⁽²⁵+ 7/3

= ³⁾1/4+⁴⁾7/3

= 3/12+28/12

= 31/12