What is 2/5+3/7-1/4 ?

The solution to 2/5+3/7-1/4 is 81/140

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simplify 2/5+3/7-1/4

simplify

\frac{2}{5} + \frac{3}{7} - \frac{1}{4}

\frac{81}{140}

Solution steps

\frac{2}{5} + \frac{3}{7} - \frac{1}{4}

Least Common Multiplier of

5, 7, 4 : 140

Adjust Fractions based on the LCM

= \frac{56}{140} + \frac{60}{140} - \frac{35}{140}

Apply the fraction rule:

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

= \frac{56 + 60 - 35}{140}

Add the numbers:

56 + 60 - 35 = 81

= \frac{81}{140}

4 \cdot 6 \div 2^{3}

e^{- l n (x^{2} + 1)}

4.9 x^{2} - 29.4 x = 12

10 x^{2} + 40 x + 14 x + 56

z^{2} - 121