simplify 1/21+1/28

Solution

simplify

\frac{1}{21} + \frac{1}{28}

\frac{1}{12}

Solution steps

\frac{1}{21} + \frac{1}{28}

Least Common Multiplier of

21, 28 : 84

Adjust Fractions based on the LCM

= \frac{4}{84} + \frac{3}{84}

Apply the fraction rule:

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

= \frac{4 + 3}{84}

Add the numbers:

4 + 3 = 7

= \frac{7}{84}

Cancel the numbers:

\frac{7}{84} = \frac{1}{12}

= \frac{1}{12}

x^{2} (4 x - 2 y)

\frac{2}{2 + 3}

5 m^{2} + m

7 192 x^{9} y^{2}

\frac{34 x - 85}{17}