Question

With full solutions like this photo​

Answer 1

Answer:

first make dinominator same by LCM method and then add

Answer 2

Answer:

(a)

$\frac{2}{3} + \frac{1}{7} \\ \\ lcm = 21 \\ \\ = \frac{14 + 3}{21} \\ \\ = \frac{17}{21}$

Step-by-step explanation:

(b)

$4\frac{2}{3} + 3 \frac{1}{4} = \frac{14}{3} + \frac{13}{4} \\ \\ lcm = 12 \\ \\ = \frac{56 + 39}{12} \\ \\ = \frac{95}{12} \\ \\ =8 \frac{11}{12}$

(c)

0.007+8.5+30.08

= 38.587