Question

Ellen gave birth to quadruplets weighing 5 lb 6 oz is 4 pounds 10 ounces is 4 lb 14 oz in 5 lb to ounces what was that old birth weight in pounds are the quadruplets

Answer 1

First, we have to express all the weights in pounds only.

We know that 1 pound is equivalent to 16 ounces. Let's transform each ounce.

`6oz\cdot(1lb)/(16oz)=(6)/(16)lb=(3)/(8)lb`

Then, we sum to the first weight.

`5+(3)/(8)=(40+3)/(8)=(43)/(8)=5.375`

The first birth weighed 5.375 pounds.

Now, we transform the ounces of the second birth.

`10oz\cdot(1lb)/(16oz)=(10)/(16)lb=(5)/(8)lb`

Then, we sum.

`4+(5)/(8)=(32+5)/(8)=(37)/(8)=4.625lb`

The second birth weighed 4.625 pounds.

`14oz\cdot(1lb)/(16oz)=(14)/(16)lb=(7)/(8)lb`

Then, we sum.

`4+(7)/(8)=(32+7)/(8)=(39)/(8)=4.875lb`

The third birth weighed 4.875 pounds.

`2oz\cdot(1lb)/(16oz)=(2)/(16)lb=(1)/(8)lb`

Then, we sum.

`5+(1)/(8)=(40+1)/(8)=(41)/(8)=5.125lb`

The fourth birth weighed 5.125 pounds.

At last, we have to sum all the pounds.

`5.375+4.625+4.875+5.125=20`Hence, the total weight in pounds is 20.