(1/4×2/7) - (5/14×-2/3)+(3/7×9/2)
syeda1625:
(1/14)-(-5/21)+(27/14) =>(3+10+72)/42 => 85/42
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1
1/14+5/21+27/14
3+10+81/42
94/42
last step is wrong ...3+10+72/42 =85/42
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