Question

4 intregi si 2 supra 7 × 11 supra 12 × 21 supra 5 si 0,(18)×5 supra 26 × 4 intregi si 1 supra 30 heeeeelp pls

Answer 1

4 intregi si 2/7 × 11/12 × 21/5 =
=30/7 × 11/12 × 21/5 =
=(30× 11 × 21)/(7 ×12 ×5) =
=(3× 11 )/2=33/2


0,(18)×5/26 × 4 intregi si 1/30 =
=18/99×5/26 × 121/30 =
=2/11×5/26 × 121/30 =
=(2×5× 121)/(11×26×30) =
=11/(26×3) =11/78