Say you bought 3 pizzas. If you ate $5/12$ and Joe ate $1 1/4$ how much is left for Jenn?

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Answer 1 · 2018-06-11T11:28:49

$1 1/3$ is left

You need to subtract to subtract $5/12 and 1 1/4$ from $3$ .

You can do this by adding them together and then subtracting, or we can do it in one calculation.

$3-5/12-1 1/4" "larr$ work with the whole numbers first

$= 2 - 5/12 -1/4" "larr$ convert one whole number to $12/12$

$= 1+color(blue)(1)-5/12-1/4$

$= 1 +color(blue)(12/12)-5/12-1/4" "larr$ find a common denominator

$= 1 + (color(blue)(12)-5-3)/color(blue)(12)" "larr$ use equivalent fractions.

$= 1 4/12$

$=1 1/3" "larr$ simplest form

Answer 2 · 2018-06-12T14:45:00

Jenn is left with $color(green)( = 1 1/3$ pizzas

No. of pizzas bought $color(green)(= 3$

Pizzas ate by me and Joe $= (5/12) +1 1/4$

Pizzas left for Jenn $= 3 - (5/12 + 1 1/4)$

$L C M$ for $4, 12$ is $12$

$:. => (3 - 5/12- 5/4)$

$=> (3*12 - 5 -5*3)/12$

$=> (36 - 5 - 15) /12 = (36-20) / 12$

$=> cancel(16)^color(red)(4)/ cancel(12)^color(red)(3) = 4/3 = color(green)(1 1/3$

Say you bought 3 pizzas. If you ate 5/125/12 and Joe ate 1 1/41 1/4 how much is left for Jenn?