1.(-3/4)+9/8*(-2/3)
2.(9/7)*1/3÷6/7
3..4+[(-0.1)+19/3+(-47/3)]+4/3
I want to ask Maths
2007-09-04 9:32 pm
回答 (2)
2007-09-04 11:06 pm
✔ 最佳答案
1.(-3/4)+9/8*(-2/3)=-3/4-3/4
=-3/2
2. (9/7)*1/3÷6/7
=3/7 * 7/6
=1/2
3. 4+[(-0.1)+19/3+(-47/3)]+4/3
=4+[(-1/10)+19/3+(-47/3)]+4/3
=4+[(-1/10)-28/3]+4/3
=4+283/30 +4/3
=4+323/30
=443/30
=14 * 23/30
參考: Maths. Knowledge
2007-09-04 10:00 pm
1.(-3/4)+9/8*(-2/3)
Solve
(-3/4)+9/8*(-2/3)
= (-3/4) + (-3/4)
= -6/4
= -3/2
2.(9/7)*1/3÷6/7
Solve
(9/7)*1/3÷6/7
= 3/7 * 7/6
= 1/2
3..4+[(-0.1)+19/3+(-47/3)]+4/3
Solve
4+[(-0.1)+19/3+(-47/3)]+4/3
= 4 + [(-1/10) + 19/3 + (-47/3)] + 4/3
= 120/30 + [(-3/30) + 190/30 + (-470/30)] + 40/30
= 120/30 + (-283/30) + 40/30
= 123/30
Solve
(-3/4)+9/8*(-2/3)
= (-3/4) + (-3/4)
= -6/4
= -3/2
2.(9/7)*1/3÷6/7
Solve
(9/7)*1/3÷6/7
= 3/7 * 7/6
= 1/2
3..4+[(-0.1)+19/3+(-47/3)]+4/3
Solve
4+[(-0.1)+19/3+(-47/3)]+4/3
= 4 + [(-1/10) + 19/3 + (-47/3)] + 4/3
= 120/30 + [(-3/30) + 190/30 + (-470/30)] + 40/30
= 120/30 + (-283/30) + 40/30
= 123/30
收錄日期: 2021-04-30 20:53:41
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