2 years ago

How do you solve 2 2/5 divided by 1/12

Mathematics

2 answers:

AfilCa [17]2 years ago

6 0

You have to turn 2 2/5 into a improper fraction. Then divide it afterwards hold,change and flip.

lisov135 [29]2 years ago

4 0

Change 2 2/5 to an improper fraction (12/5) and multiply by the reciprocal of 1/12 (12/1) this is 144/5 then simplify to 28 4/5

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Nata [24]

Answer: 15, -8

Step-by-step explanation:

$u_2=7\\u_2=u_1+r\\u_3=u_1+2r\\u_4=u_1+3r\\\\u_1+u_2+u_3+u_4=4u_1+6r=12\\u_1+r=7\\\\$

$\left \{ \begin {array} {ccc|c|c}u_1+r&=&7&-4&-6\\4u_1+6r&=&12&1&1\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}2r&=&-16\\-2u_1&=&-30\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}r&=&-8\\u_1&=&15\\\end {array} \right.\\\\\\Proof:\\u_1=15\\u_2=7\\u_3=-1\\u_4=-9\\sum=12\\$