Question

How to subtract 1/9 from 45

Answer 1

Answer:

$\dfrac{1}{9}-45=-\dfrac{404}{9}\quad \left(\mathrm{Decimal:\quad }\:-44.88889\dots \right)$

Step-by-step explanation:

$\dfrac{1}{9}-45$

$\gray{\mathrm{Convert\:element\:to\:fraction}:\quad \:45=\dfrac{45\cdot \:9}{9}}$

$=-\dfrac{45\cdot \:9}{9}+\dfrac{1}{9}$

$\gray{\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \dfrac{a}{c}\pm \dfrac{b}{c}=\dfrac{a\pm \:b}{c}}$

$=\dfrac{-45\cdot \:9+1}{9}$

$\black{-45\cdot \:9+1}$

$\gray{\mathrm{Multiply\:the\:numbers:}\:45\cdot \:9=405}$

$=-405+1$

$\gray{\mathrm{Add/Subtract\:the\:numbers:}\:-405+1=-404}$

$=-404$

$=\dfrac{-404}{9}$

$\gray{\mathrm{Apply\:the\:fraction\:rule}:\quad \dfrac{-a}{b}=-\dfrac{a}{b}}$

$=-\dfrac{404}{9}$

Answer 2

Answer:404/9

Step-by-step explanation:

45-1/9

45/1-1/9

by taking lcm and getting like denominators we get

405/9 -1/9

=404/9