Question

determinati fractia a supra b stiind ca este echivalenta cu fractia 2 supra3 si a+b=10

Answer 1

? a/b
a/b=2/3
a*3=b*2
3a=2b
a=2b/3
a+b=10
2b/3+b=10
2b/3+3b/3=30/3
5b/3=30/3
5b*3=30*3
15b=90
b=90:15
b=6
a+6=10
a=10-6
a=4