8/3[2/7+{18/7-(1/14-3/7)×7/10}]
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Answer:
8/3[2/7+{18/7-(1/14-3/7)×7/10}]
= 8/3[2/7+{18/7-(1/14-6/14)}]
= 8/3[2/7+{18/7-(-5/14)}]
= 8/3[2/7+{18/7+5/14}]
= 8/3[2/7+{36/14+5/14}]
=8/3[2/7+{41/14}]
=8/3[4/14+41/14]
=8/3[45/14]
=60/7
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