Question

¿que numero debe sumarse a la fracción 19/163 para que se convierte en 1/7?

Answer 1

El número que debo sumar = s

s + 19/163 = 1/7

(163s + 19)/163 = 1/7

1141s + 133 = 163

1141s = 163 - 133

1141s = 30

s = 30/1141

Debes sumar:
30/1141

Answer 2

Х+19/163=1/7;
Х=1/7- 19/163;
X= (1•163)/(7•163) - (19•7)/(163•7);
X= 163/1141 - 133/1141;
X= 30/1141;
______________
X+ 19/163=1/7; --->>> 30/1141+ 19/163= 30/1141+ (19•7)/(163•7)= 30/1141+ 133/1141= 163/1141= (163:163)/(1141:63)= 1/7;