简算题 7/10*7/12+5/12÷10/7 (5/8-16/3)÷(1/3+1/4)

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简算题 7/10*7/12+5/12÷10/7 (5/8-16/3)÷(1/3+1/4)

简算题 7/10*7/12+5/12÷10/7 (5/8-16/3)÷(1/3+1/4)
简算题 7/10*7/12+5/12÷10/7 (5/8-16/3)÷(1/3+1/4)

简算题 7/10*7/12+5/12÷10/7 (5/8-16/3)÷(1/3+1/4)
7/10*7/12+5/12÷10/7
=7/10*(7/12+5/12)
=7/10*1
=7/10
(5/8-16/3)÷(1/3+1/4)
=(15/24-128/24)*12/7
=-113/24*12/7
=-113/21
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7/l0x(7/12 5/12)=7/10
(15/24-128/24)/(8/24 6/24)
=-113/24x24/14
=-113/14

7/10*7/12+5/12÷10/7
=7/10*7/12+5/12*7/10
=7/10*(7/12+5/12)
=7/10*1
=7/10
(5/8-16/3)÷(1/3+1/4)
=(5/8-16/3)÷7/12
=(5/8-16/3)*12/7
=5/8*12/7-16/3*12/7
=5/2*3/7-16*4/7
=(15/2 -64)*1/7
=-113/7