Question

Q1. Add the following rational numbers:

(a) 13/5 and 4/5

(b) -3/7 and -4/7

(c) 9/-8 and 1/8

(d) -8/11 and 7-11​

Answer 1

Answer:

D)1/11

a) 17/5

b)7/7=1

c)-8/8=-1

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Answer 2

Answer:

$a. \: \frac{13}{5} + \frac{4}{5} = \frac{13 + 4}{5} = \frac{17}{5} \\ b. \: \frac{ - 3}{7} + \frac{ - 4}{7} = \frac{ - 3 - 4}{ 7} = \frac{ - 7}{7} = - 1 \\ c. \: \frac{9}{ - 8} + \frac{1}{8} = \frac{ - 9 + 1}{8} = \frac{ - 8}{8} = - 1 \\ d. \: \frac{ - 8}{11} + \frac{7}{ - 11} = \frac{ - 8 - 7}{11} = \frac{ - 15}{11}$

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