Question

h) 15/9×4/3×9/4×3/15

i) 2 1/2× 2 1/5× 2 2/3× 1/8×1/5​

Answer 1

Resposta:

Explicação passo-a-passo:

H) 15/9×4/3×9/4×3/15

= 15/15 . 9/9 . 3/3 . 4/4

= 1

i) 2 1/2× 2 1/5× 2 2/3× 1/8×1/5​

= (2.2+1)/2 . (5.2+1)/5 . (3.2+2)/3 . 1/40

= 5/2 . 11/5 . 8/3 . 1/40

= 5/5 . 8/2 . 11/3 . 1/40

= 1 . 4 . 11/3 . 1/40

= 4/40 . 11/3

= 1/10 . 11/3

= 11/30