Question

find the sum. copy and write your answers on your answer sheet​

Answer 1

Answer:

2)9/4 I only know that part answer

Answer 2

Answer:

83/10, 417/20, 19/3

Step-by-step explanation:

The sum can be done as follows:

1)

$7\frac{5}{10} + \frac{4}{5}\\= \frac{75}{10} + \frac{4}{5}\\= \frac{(75 + 8)}{10} \\= \frac{83}{10}$

2)

$20\frac{3}{5} + \frac{3}{4}\\= \frac{103}{5} + \frac{3}{4}\\= \frac{(412 + 15)}{20} \\= \frac{417}{20}$

3)

$5\frac{7}{12} + \frac{3}{4}\\= \frac{67}{12} + \frac{3}{4}\\= \frac{(67 + 9)}{12} \\= \frac{76}{12}\\ =\frac{19}{3}$