Question

what percent of 49 is 7

Answer 1

In general:\[\frac{\text{part}}{\text{whole}} = \frac{\%}{100}\]

In this case
\[\frac{7}{49} = \frac{x}{100}\]

Solve for x to find the percent

Answer 2

In addition to what hero displayed above.
\[\large \frac{ 1 }{ 7 } = \frac{ x }{ 100 }\]
You can reduce 7/49.
From there you cross multiply the terms.