Question

2 and 1 upon 7 + 9 upon 11=?​

Answer 1

Answer:

$\frac{228}{77}$

$2 \frac{74}{77}$

Step-by-step explanation:

According to question:

$2 \frac{1}{7} + \frac{9}{11} \\ = \frac{15}{7} + \frac{9}{11} \\ lcm \: of \: 7 \: and \: 11 \: is \: 77 \\ = \frac{15 \times 11}{7 \times 11} + \frac{9 \times 7}{11 \times 7} \\ = \frac{165}{77} + \frac{63}{77} \\ = \frac{165 + 63}{77} \\ = \frac{228}{77} \\ = 2 \frac{74}{77}$

Hope it helps