Question

1intreg 2supra7×13supra15

Answer 1

Salut,

$1 \frac{2}{7} \times \frac{13}{15} = \\ \\ \frac{9}{7} \times \frac{13}{15} = \\ \\ \frac{39}{35}$

$Răspuns => \frac{39}{35} \\ \\ Eckram$

Answer 2

Răspuns

Explicație pas cu pas:

→ introduc intregul in fractie

1 intreg si 2 / 7 = ( 1 x 7 + 2 ) / 7 = 9 / 7

9 / 7 × 13 / 15 = 1 intreg si 4/35

= ( 9 / 15 ) × ( 13 / 7 ) =

=  ( 3 × 13 ) / (5 × 7 ) =

= 39 / 35 =

=  1 intreg si  4 / 35