Question

simply the following a) 4/7 + 5/8 b) 3/11 + 9/22 c) 13/8 - 2/7​

Answer 1

Answer:

a. 67/56

b. 15/22

c. 75/56

Step-by-step explanation:

a. 4/7+5/8

= [(4x8) + (5x7)]/(8x7)

=67/56

b. 3/11+9/22

= [(3/11)x(2/2)]+9/22

=6/22+9/22

=15/22

c.13/8-2/7

=[(13x7)-(2x8)]/(8x7)

=75/56

Answer 2

question:-

simply the following a) 4/7 + 5/8 b) 3/11 + 9/22 c) 13/8 - 2/7

solution:-

a)

$\frac{4}{7} + \frac{5}{8}$

$= \frac{4 \times 8 + 5 \times 7}{56}$

$= \frac{67}{56}$

b)

$\frac{3}{11} + \frac{9}{22}$

$\frac{3 \times 2 + 9 \times 1}{22}$

$= \frac{15}{22}$

c)

$\frac{13}{8} - \frac{2}{7}$

$\frac{13 \times 7 - 2 \times 8}{56}$

$= \frac{75}{56}$