Question

Explain how you would estimate 2 3/5 + 5 2/7 + 3/4 =

Answer 1

Answer:

$2 \frac{3}{5} + 5 \frac{2}{7} + \frac{3}{4} \\ = 2 + 5 + \frac{3}{5} + \frac{2}{7} + \frac{3}{4} \\ = 7 + \frac{3}{5} + \frac{2}{7} + \frac{3}{4} \\ = 7 + \frac{3 \times 7 + 2 \times 5}{5 \times 7} + \frac{3}{4} \\ = 7 + \frac{21 + 10}{35} + \frac{3}{4} \\ = 7 + \frac{31}{35} + \frac{3}{4} \\ = 7 + \frac{31 \times 4 + 3 \times 35}{35 \times 4} \\ = 7 + \frac{229}{140} \\ = 7 \frac{229}{140}$

Therefore the answer is

$7 \frac{229}{140}$

Step-by-step explanation:

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