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March 2022 1 12 Report

1) (4 1/3+3 1/5):113
2) (6-7 1/8)×(2/9+2/3)

Answers & Comments

alex080297

1) (4 1/3+3 1/5):113

$\frac{13}{3}+\frac{16}{5} =\frac{65}{15} +\frac{48}{15} =\frac{113}{15}$

$\frac{113}{15}:113=\frac{113}{15}*\frac{1}{113} =\frac{1}{15}$

2)(6-7 1/8)×(2/9+2/3)

$6-7\frac{1}{8}=6-\frac{57}{8}=\frac{48}{8} -\frac{57}{8} =-\frac{9}{8}$

$\frac{2}{9} +\frac{2}{3}=\frac{2}{9}+\frac{6}{9} =\frac{8}{9}$

$-\frac{9}{8}*\frac{8}{9} =-1$

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