Question

simplyfy 3/4-5/7+9/14​

Answer 1

Answer:

$\frac{3}{4}-\frac{5}{7}+\frac{9}{14}=\frac{19}{28}\quad \left(\mathrm{Decimal:\quad }\:0.67857\dots \right)$

Step-by-step explanation:

$\frac{3}{4}-\frac{5}{7}+\frac{9}{14}$

$=\frac{21}{28}-\frac{20}{28}+\frac{18}{28}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{21-20+18}{28}$

$\mathrm{Add\:the\:numbers:}\:21-20+18=19$

$=\frac{19}{28}$

Answer 2

Answer:

19/28

Step-by-step explanation:

3/4-5/7+9/14

=[(3*7)-(5*4)+(9*2)]/28

=19/28