If A:B:C:D=1/2:1/3:1/4:1/5, find A+B:C+D
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Step-by-step explanation:
A:B:C:D=1/2:1/3:1/4:1/5
let A= 1X/2
B= 1X/3
C= 1X/4
D= 1X/5
A+B:C+D
= 1X/2 + 1X/3 : 1X/4 + 1X/5
= 3X+2X/6 : 5X+4X/ 20
= 5X/6 : 9X/20
= 100X : 54X
= 50:27
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