Respuesta:
2 / 25
129 / 50
Explicación paso a paso:
4 / 5
= ( 4 / 5 ) x ( 5 / 5 )
= ( 4 x 5 ) / ( 5 x 5 )
= 20 / 25
22 / 25 - 4 / 5
= 22 / 25 - 20 / 25
= ( 22 - 20 ) / 25
= 2 / 25
7 / 10
= ( 7 / 10 ) x ( 5 / 5 )
= ( 7 x 5 ) / ( 5 x 10 )
= 35 / 50
22 / 25
= ( 22 / 25 ) x ( 2 / 2 )
= ( 22 x 2 ) / ( 2 x 25 )
= 44 / 50
4 / 5
= ( 4 / 5 ) x ( 10 / 10 )
= ( 4 x 10 ) / ( 5 x 10 )
= 40 / 50
7 / 10 + 22 / 25 + 4 / 5
= 35 / 50 + 44 / 50 + 40 / 50
= ( 35 + 44 + 40 ) / 50
= 129 / 50