各位高手,几题数学计算题,拜托了(1/4-1/6)乘12 34乘(2+13/34) 1又3/4乘2又4/15乘4/7 (11/12+7/18+5/24)乘724.25-三又5/6-(二又1/6-一又3/4) 十七又5/6-三又3/4-四又5/6 125乘8.8
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各位高手,几题数学计算题,拜托了(1/4-1/6)乘12 34乘(2+13/34) 1又3/4乘2又4/15乘4/7 (11/12+7/18+5/24)乘724.25-三又5/6-(二又1/6-一又3/4) 十七又5/6-三又3/4-四又5/6 125乘8.8
各位高手,几题数学计算题,拜托了
(1/4-1/6)乘12 34乘(2+13/34) 1又3/4乘2又4/15乘4/7 (11/12+7/18+5/24)乘72
4.25-三又5/6-(二又1/6-一又3/4) 十七又5/6-三又3/4-四又5/6 125乘8.8
十二又2/5-(一又2/7+二又2/5) 7/9除以二又1/5+5/11乘2/9 四又1/3+3.2+五又2/3+6.8
各位高手,几题数学计算题,拜托了(1/4-1/6)乘12 34乘(2+13/34) 1又3/4乘2又4/15乘4/7 (11/12+7/18+5/24)乘724.25-三又5/6-(二又1/6-一又3/4) 十七又5/6-三又3/4-四又5/6 125乘8.8
(1/4-1/6)×12
=1/4×12-1/6×12
=3-2
=1
34×(2+13/34)
=68+13
=81
1又3/4×2又4/15×4/7
=7/4×4/7×2又4/15
=2又4/15
(11/12+7/18+5/24)乘72
=11×6+7×4+5×3
=66+28+15
=109
4.25-3又5/6-(2又1/6-1又3/4)
=4又1/4-3又5/6-2又1/6+1又3/4)
=4又1/4+1又3/4-(3又5/6+2又1/6)
=6-6
=0
17又5/6-3又3/4-4又5/6
=17又5/6-4又5/6-3又3/4
=13--3又3/4
=9又1/4
125乘8.8
=125×8×1.1
=1000×1.1
=1100
12又2/5-(1又2/7+2又2/5)
=12又2/5-2又2/5-1又2/7
=10-1又2/7
=8又5/7
7/9除以2又1/5+5/11乘2/9
=7/9×5/115/11×2/9
=5/11×(7/9+2/9)
=5/11×1
=5/11
4又1/3+3.2+5又2/3+6.8
=4又1/3+5又2/3+3.2+6.8
=10+10
=20