What is (5r^2)/7-(5r^2-7)/7 ?

The solution to (5r^2)/7-(5r^2-7)/7 is 1

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simplify (5r^2)/7-(5r^2-7)/7

simplify

\frac{5 r ^{2}}{7} - \frac{5 r ^{2} - 7}{7}

1

Solution steps

\frac{5 r ^{2}}{7} - \frac{5 r ^{2} - 7}{7}

Apply the fraction rule:

\frac{a}{c} - \frac{b}{c} = \frac{a - b}{c}

= \frac{5 r ^{2} - ( 5 r ^{2} - 7 )}{7}

Simplify

5 r^{2} - (5 r^{2} - 7) : 7

= \frac{7}{7}

Apply the fraction rule:

\frac{a}{a} = 1

= 1

(3 x + 9)^{2}

(- 74) (- 6 - 49)

(3 x - y)^{4}

\frac{24}{7} - \frac{21}{2} + \frac{11}{14}

8 - \frac{2}{3}