Question

Find the difference: 7 7/8 - 3 1/4=?

Answer 1

Hello!

$[tex]7 \frac{7}{8} -3 \frac{1}{4} \\ \\ \frac{7 \times 8 + 7}{8} -3 \frac{1}{4} \\ \\ \frac{56+7}{8} - 3 \frac{1}{3} \\ \\ \frac{63}{8} - 3 \frac{1}{4} \\ \\ \frac{63}{8} - \frac{3 \times 4 + 1}{4} \\ \\ \frac{63}{8} - \frac{12+1}{4} \\ \\ \frac{63}{8} - \frac{13}{4} \\ \\ LCD = 8 \\ \\ \frac{63}{8} - \frac{13 \times 2}{4 \times 2} \\ \\ \frac{63}{8} - \frac{26}{8} \\ \\ \frac{63 - 26}{8} \\ \\ \frac{37}{8} \\ \\ 4 \frac{5}{8} \\ \\ Answer: \fbox {4 \ 5/8} \ or \ \fbox {4.625}$ [/tex]

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