IMathAS-libretexts

Multiply and simplify:

\displaystyle \frac{{{21}{y}}}{{r}}\cdot\frac{{{5}{r}}}{{{7}{a}}}

Enter the numerator and denominator separately in the boxes below.

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Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question

Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question