Can some1 pls explain to me how to do this??! Katrina is building a deck. She cuts 3 lengths of wood from a 72-inch board. The first length is
3
30---
4
inches. The second length is
1
12---
4
inches. And the third length is
1
16--
4
inches. How much of the original board remains after Katrina makes her cuts?

Question

Can some1 pls explain to me how to do this??! Katrina is building a deck. She cuts 3 lengths of wood from a 72-inch board. The first length is 
      3
30---
      4
 inches. The second length is  
      1
12---
      4
inches. And the third length is 
     1
16--
     4
 inches. How much of the original board remains after Katrina makes her cuts?

anonymous · Answer

Add all the fractions together then subtract that from 72

anonymous · Answer

yes but how do i add fractions?! @carebr0022

anonymous · Answer

i wouls add all the single numbers first right

anonymous · Answer

multiply the denominator and the big number out front then add the numerators

anonymous · Answer

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