# Solve for y 12/28=3/y

1228=3y
Rewrite the equation as 3y=1228.
3y=1228
Cancel the common factor of 12 and 28.
Factor 4 out of 12.
3y=4(3)28
Cancel the common factors.
Factor 4 out of 28.
3y=4⋅34⋅7
Cancel the common factor.
3y=4⋅34⋅7
Rewrite the expression.
3y=37
3y=37
3y=37
Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.
3⋅7=y⋅3
Solve the equation for y.
Rewrite the equation as y⋅3=3⋅7.
y⋅3=3⋅7
Multiply 3 by 7.
y⋅3=21
Divide each term by 3 and simplify.
Divide each term in y⋅3=21 by 3.
y⋅33=213
Cancel the common factor of 3.
Cancel the common factor.
y⋅33=213
Divide y by 1.
y=213
y=213
Divide 21 by 3.
y=7
y=7
y=7
Solve for y 12/28=3/y

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