Question

Practice Set 22
3.
carry out the following additions of rational numbers.
1) 5/36 +6/42
2)1 2/3+2 4/5
3)11/17+13/19
4)2 3/11+1 3/77​

Answer 1

Step-by-step explanation:

$\frac{5}{36} + \frac{6}{42} \\ \frac{5}{36} + \frac{1}{7} \: \: \: \frac{35 + 36}{252} \\ \\ \frac{71}{252}$

$\frac{12}{3} + \frac{14}{5} \\ \frac{60 + 42}{15} \: \: \: \: \: \frac{102}{15} \\ \\ \frac{34}{5}$

$\frac{11}{17} + \frac{13}{19} \\ \frac{209 + 221}{323} \\ \\ \frac{430}{323}$

$\frac{25}{11} + \frac{80}{77} \\ \\ \frac{175 + 80}{77} \\ \frac{255}{77}$