Question

3/4 x ( ) = 21/36


( ) x 15/16 = 1



7/9 x ( ) = 1



5/7 x ( ) = 40/77. AYUDA PORFA ES PARA MAÑANA ​

Answer 1

Respuesta:

1°= 7/9

2°= 16/15

3°= 9/7

4°= 8/11

Explicación paso a paso:

1° 3/4 × (x) = 21/36

3/4 × (x) = 7/12

x= 7/9

2° (x) × 15/16 = 1

15/16 × (x) = 1

x= 16/15

3° 7/9 × (x) = 1

9/7× 7/9× (x) = 9/7 × 1

x= 9/7

4° 5/7 × (x) = 40/77

7/5×5/7 ×(x) = 7/5×40/77

x= 7× 8/77

x= 8/11