5 2/7 - 2¼ ÷ 3½
5×7+2/7 - 2×4+1/4 ÷ 3×2+1/2
37/7 - 9/4 ÷ 7/2
37/7 - 9/4 × 2/7
37/7 - 18/28
37/7 - ( 18/28 ÷ 2/2 )
37/7 - ( 9/14 )
37×2/7×2 - 9/14
74/14 - 9/14
74-9/14
65/14
4 9/14 ( D )
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5 2/7 - 2¼ ÷ 3½
5×7+2/7 - 2×4+1/4 ÷ 3×2+1/2
37/7 - 9/4 ÷ 7/2
37/7 - 9/4 × 2/7
37/7 - 18/28
37/7 - ( 18/28 ÷ 2/2 )
37/7 - ( 9/14 )
37×2/7×2 - 9/14
74/14 - 9/14
74-9/14
65/14
4 9/14 ( D )
»JAWABAN«