帮助一下。 谢谢
2个回答
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解:(3)原式=(4/3-8/15*4.5)+27/2
=(4/3-36/3)+27/2
=17/6
(4)原式=51/4-12/5*15/12*2/5
=51/4-6/5
=231/20
(5)原式=6999/7+699/7+69/7+6/7
=7773/7
(6)原式=6.3/(2.6+16/5*15/8)
=6.3/8.6
=63/86
(7)原式=17/35*5*7
=17
(8)原式=8999/9+899/9+89/9+3/9
=9990/9
=1110
希望我的回答能对你的学习有帮助!
=(4/3-36/3)+27/2
=17/6
(4)原式=51/4-12/5*15/12*2/5
=51/4-6/5
=231/20
(5)原式=6999/7+699/7+69/7+6/7
=7773/7
(6)原式=6.3/(2.6+16/5*15/8)
=6.3/8.6
=63/86
(7)原式=17/35*5*7
=17
(8)原式=8999/9+899/9+89/9+3/9
=9990/9
=1110
希望我的回答能对你的学习有帮助!
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