Question

please help me anyone ​

Answer 1

Answer:

a)45

b)15

c)720

Step-by-step explanation:

a) 5/8 * 9/7

=5*7/8*7  *  9*8/7*8

=35/56 * 72/56

= 2520/56

= 45

b)2*(3/7 * 5/11)

=2*(33/77*35/77)

=2*(1155/77)

=15

c)15(8/7 * 6/13)

=15(8*13/7*13  * 6*7/13*7)

=15(104/91 * 42/91)

=15(4368/91)

=15(48)

=720

Answer 2

Step-by-step explanation:

$(a) \: \frac{5}{8} \times \frac{9}{7}$

$= \frac{5 \times 9}{8 \times 7}$

$= \frac{45}{56} (ans)$

$(b) \: 2 \frac{3}{7} \times \frac{5}{11}$

$= \frac{17}{7} \times \frac{5}{11}$

$= \frac{17 \times 5}{7 \times 11}$

$= \frac{85}{77}$

$= 1 \frac{8}{77} (ans)$

$(c) \: 5 \frac{8}{7} \times 3 \frac{6}{13}$

$= \frac{43}{7} \times \frac{45}{13}$

$= \frac{43 \times 45}{7 \times 13}$

$= \frac{1935}{77}$

$= 25 \frac{10}{77} (ans)$