Question

How do you solve `16/7=m/21`?

Answer 1

See a solution process below:

Explanation:

Multiply each side of the equation by `color(red)(21)` to solve for `m` while keeping the equation balanced:

`color(red)(21) xx 16/7 = color(red)(21) xx m/21`

`cancel(color(red)(21))color(red)(3) xx 16/color(red)(cancel(color(black)(7))) = cancel(color(red)(21)) xx m/color(red)(cancel(color(black)(21)))`

`color(red)(3) xx 16 = m`

`48 = m`

`m = 48`