estimate: \n\\frac{5}{8} - \\frac{4}{7} = \\underline{quadquad}\n\na 0\n\nb 1\n\nc \\frac{9}{15}\n\nd…

estimate: \n\\frac{5}{8} - \\frac{4}{7} = \\underline{quadquad}\n\na 0\n\nb 1\n\nc \\frac{9}{15}\n\nd \\frac{20}{56}

estimate: \n\\frac{5}{8} - \\frac{4}{7} = \\underline{quadquad}\n\na 0\n\nb 1\n\nc \\frac{9}{15}\n\nd \\frac{20}{56}

Answer

Explanation:

Step1: Round the fractions

Round (\frac{5}{8}) to (\frac{1}{2}) (since (\frac{5}{8}=0.625\approx0.5) when estimating) and (\frac{4}{7}\approx0.6\approx\frac{1}{2}) (because (0.6) is close to (0.5) for a rough estimate).

Step2: Subtract the rounded fractions

(\frac{1}{2}-\frac{1}{2}=0)

Answer:

A. 0