Question

Ajutați-mă la exercițiul 4 va rog​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

2¹/₁₂=(2x12+1)/12=25/12

1⁵/₁₆=(1x16+5)/16=21/16

-

⁴⁾25/12-⁶⁾3/8-³⁾21/16

= 100/48-18/48-63/48

= 82/48-63/48

=19/48

b)

4⁵/₂₁=(4x21+5)/21=89/21

2³/₄=(2x4+3)/4=11/4

-

⁴⁾89/21-⁷⁾7/12-²¹⁾11/4

= 356/84-49/84-231/84

= 307/48-231/84

=76/84

-

c)

3¹/₉=(3x9+1)/9=28/9

1⁵/₂₄=(1x24+5)/24=29/24

-

⁸⁾28/9-⁴⁾5/18-³⁾29/24

= 224/72-20/72-87/72

= 204/72-87/72

= 117/72