Question

It takes 18 3/8 inches of wood to make a frame for a small photo. Ms. Jones has 3 yards of wood. How many frames can she make?

Answer 1

Knowing that 1 yards its 36 inch first we have to multiply 3 times 36 to get much much wood Ms. Jones has.
36*3=108 inches
Finally we have to divide 108 : 18 3/8 to get the answer.
108:
`18 (3)/(8)=108: (18*8+3)/(8)=108: (147)/(8)`
When we want to subtract number by fraction we can multiply number by inverse of that fraction, so

`108: (147)/(8)=108* (8)/(147) = (108*8)/(147)= (864)/(147)=5 (129)/(147)`
We have to round down the result, so the answer is 5.