Question

doy coronita porfis ​

Answer 1

Explicación paso a paso:

3/4 - 5/9

(aspa) =3x9-4x5/9x4

=27-20/36

=7/36

7/8-1/3

(aspa) =7x3-8x1/8x3

= 21-8/24

= 13/24

3/5-3/10

(aspa)= 3x10-3x5/5x10

= 30-15/50

= 15/50 (simplificar 5)

= 3/10

5/7-2/9

(aspa)=5x9-7x2/9x7

= 45-14/63

=31/63