Miguel was 12&3/4 yrs old when his sister was born 7 years ago.Mary is now 16 and 1/3, how old is miguel now?

Question

Miguel was 12&3/4 yrs old when his sister was born 7 years ago.Mary is now 16 and 1/3, how old is miguel now?

Answer 1

Hint: Mary's irrelevant.

Answer 2

Just add 16 and 1/3 to 12 and 3/4.

The first step is to add the two whole numbers. So 16 + 12 = 28.

Then add the two fractions. The key to adding fractions is to make the denominator for both equal. This is a bit tricky, but the key is to use the denominator of one and multiply it to the other:

     1               4                            3               9

   -----  x 4 =  -----                         -----  x 3 =  -----

     3              12                           4              12

Now you can add the two fractions, which is: 13/12, which in simplified form is 1 and 1/12.

Now add this to the previous whole number of 28 and you get:

      1

29 -----

     12

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