Question

. c.
4/3×5/2 -11/2×1/24

b. d.
4/15÷12/3 -5/7÷9/3

Answer 1

Explicación paso a paso:

.c.

4/3×5/2 -11/2×1/24 =

20/6 - 11/24 = simplifico

10/3 - 11/24 = busco Mcm que es 24

80/24 - 11/24= 69/24 = 23/8 = 2 7/8

b. d.

4/15÷12/3 -5/7÷9/3 =

12/180 - 15/63 = simplifico

1/15 - 15/63 = busco mcm que es 315

21/315 - 75/315= - 54/315 = 6/35

15, 63 = 3

5, 21= 3

5, 7= 5

1, 7= 7

1,1 Mcm(15,63)=3x3x5x7= 315

Answer 2

Explicación paso a paso:

LA C:

$\frac{4}{3}\times \frac{5}{2}-\frac{11}{2}\times \frac{1}{24}$

$\frac{10}{3}-\frac{11}{48}$

$\frac{160}{48}-\frac{11}{48}$

$\frac{160-11}{48}$

$\frac{149}{48}$

LA B:

$\frac{4}{15}\div \frac{12}{3}-\frac{5}{7}\div \frac{9}{3}$

$\frac{4}{15}\times \frac{3}{12}-\frac{5}{7}\times \frac{3}{9}$

$\frac{1}{15}-\frac{5}{21}$

$\frac{7}{105}-\frac{25}{105}$

$\frac{7-25}{105}$

$\frac{-18}{105}$      

$-\frac{18}{105}$ =   $-\frac{6}{35}$                      Esta parte me sale así pero no se estara bien :(

espero ayudarte<3