8 3/8 × 6 5/8
= 67/8 × 53/8
= 3551/64
= 55 31/64
9 7/8 × 5 2/3
= 79/8 × 17/3
= 1343/24
= 55 23/24
[tex]8\frac{3}{8}\times{6\frac{5}{8} } \\\\=\frac{8(8)+3}{8} \times{\frac{6(8)+5}{8} }\\\\=\frac{67}{8} \times{\frac{53}{8} }\\\\=\frac{67(53)}{8(8)} \\\\=\frac{3551}{64} \\\\=55\frac{31}{64}\\ \\=55,484...[/tex]
[tex]9\frac{7}{8} \times{5\frac{2}{3} }\\\\=\frac{9(8)+7}{8} \times{\frac{5(3)+2}{3} }\\\\=\frac{79}{8} \times{\frac{17}{3} }\\\\=\frac{79(17)}{8(3)} \\\\=\frac{1343}{24} \\\\=55\frac{23}{24} \\\\=55,958...[/tex]
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Verified answer
8 3/8 × 6 5/8
= 67/8 × 53/8
= 3551/64
= 55 31/64
9 7/8 × 5 2/3
= 79/8 × 17/3
= 1343/24
= 55 23/24
[tex]8\frac{3}{8}\times{6\frac{5}{8} } \\\\=\frac{8(8)+3}{8} \times{\frac{6(8)+5}{8} }\\\\=\frac{67}{8} \times{\frac{53}{8} }\\\\=\frac{67(53)}{8(8)} \\\\=\frac{3551}{64} \\\\=55\frac{31}{64}\\ \\=55,484...[/tex]
[tex]9\frac{7}{8} \times{5\frac{2}{3} }\\\\=\frac{9(8)+7}{8} \times{\frac{5(3)+2}{3} }\\\\=\frac{79}{8} \times{\frac{17}{3} }\\\\=\frac{79(17)}{8(3)} \\\\=\frac{1343}{24} \\\\=55\frac{23}{24} \\\\=55,958...[/tex]