Question

Yvonne bought 4 7/8 yards of material to make a dress.

If Yvonne wanted to make 3 dresses that use 4 7/8 yd of fabric each, explain how she could use estimation to make sure she has enough fabric for all of them.

Answer 1

She can round 4 7/8 as 5 yards of material. and since she's making three, multiply 5 yards by 3 dresses. that equals 15 yards of material needed.

Answer 2

15 yards.

Explanation:

Each dress need fabric =
`4(7)/(8)` yards

=
`(39)/(8)` yards

She needs fabric to make 3 dresses =
`(39)/(8)` × 3

=
`(117)/(8)`

=
`14(5)/(8)` yards

She will need
`14(5)/(8)` yards or 14.63 ≈ 15 yards of fabric for all of 3 dresses.