Question

So sánh phân số

a)\(\dfrac{-23}{49}\)và \(\dfrac{-25}{47}\)

b) \(\dfrac{-317}{633}\)và \(\dfrac{-371}{743}\)

Answer 1

a) -23/49 = -1081/2303

   -25/47 = -1225/2303

=> -1081/2303 > -1225/2303 hay -23/49 > -25/47

b) -317/633 = -235531/470319

   -371/743 = -234843/470319

=> -235531/470319 < -234843/470319 hay -317/633 < -371/743