...四又二分之一:一又七分之二=一又三分之一:(4-X)
发布网友
发布时间:2024-09-27 16:26
我来回答
共2个回答
热心网友
时间:2024-11-17 06:07
解:X/6:3/4 = 7:1又2/5
x/6 * 7/5 = 3/4 * 7
x = 21/4 * 5/7
x = 15/4
4又1/2:1又2/7 = 1又1/3:(4-X)
9/2*(4-x) = 9/7 * 4/3
18 - 9x/2 = 12/7
9x/2 = 18 - 12/7
x = 76/21
15:90=(X+15):150
90(x+15) = 150*15
x+15 = 25
x=10
2又1/5:11= X:1又5/6
11x = 11/5 * 11/6
x = 11/30
热心网友
时间:2024-11-17 06:06
15:90=(X+15):150
90(X+15)=15*150
X=10
二又五分之一:11= X:一又六分之五
11X=11/5 * 11/6
X=11/30