Question

Calculeaza, aducand fractiile la forma ireductibile si grupand convenabil termenii. Rapid! ​

Answer 1

Explicație pas cu pas:

a) 23/3×23+12/3×12+18/3×18=1/3+1/3+1/3=1

..b) 10/26+18/12+24/39+5/10=5/13+3/2+8/13+1/2

(5/13+8/13)+(3/2+1/2)

13/13+4/2=1+2=3

c)(1×2×4)/3+(4×3)×5/3^2+(2×3×5)/(2^2×3^2)

8/3+20/3+5/6

16/6+40/6+5/6=61/60=1 întreg 1/60

d)