小学数学计算题(解方程)1.2:X=2:153/4:6/7=X:5/12

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小学数学计算题(解方程)1.2:X=2:153/4:6/7=X:5/12

小学数学计算题(解方程)1.2:X=2:153/4:6/7=X:5/12
小学数学计算题(解方程)
1.2:X=2:15
3/4:6/7=X:5/12

小学数学计算题(解方程)1.2:X=2:153/4:6/7=X:5/12
1.2:x=2:15
2x=1.2×15
x=9
3/4:6/7=X:5/12
6/7x=5/12×3/4
x=5/16×7/6
x=35/96

1.2:X=2:15
2*X=1.2*15
X=9
3/4:6/7=X:5/12
6/7*X=5/12*3/4
6/7X=5/16
X=15/56

1.2:X=2:15
2X=1.2*15
X=9
3/4:6/7=X:5/12
(6/7)X=(3/4)*(5/12)=5/16
X=35/96

2:x=2:15
2x=15乘以2
2x=30
x=15
3/4:6/7=x:5/12
3/4乘以5/12=6/7x
5/16=6/7x
x=35/96

1.2:X=2:15
2*X=1.2*15
X=9
3/4:6/7=X:5/12
6/7*X=5/12*3/4
6/7X=5/16
X=35/96

(1)1.2X15=2X
(2) 3/4X5/12=6/7X

1.2:X=2:15
2X=1.2*15
2X=18
X=9
3/4:6/7=X:5/12
解:6/7X=3/4*5/12
6/7X=5/16
X=35/96