Question

5pe14+3pe21=
6pe9 ori 21pe18
15pe32:9pe8

Answer 1

5/14+3/21=

=5/14+1/7

=(5+2)/14

=7/14

=1/2

6/9×21/18=

=1/3×7/3

=7/9

15/32:9/8=

=15/32×8/9

=5/4×1/3

=5/12

Answer 2

Răspuns:

Explicație pas cu pas:

5/14+3/21=5/14+1/7=(5+2)/14=7/14=1/2

6/9×21/18==2/3×7/6=1/3×7/3=7/9

15/32×8/9=5/12