Question

Rohit had 51/8 m of white ribbon.she used 21/3 m of ribbon to wrap some gifts.how much ribbon has she left

Answer 1

it can't because 51/8 is smaller than21/3

Answer 2

$5\dfrac{1}{8} - 2 \dfrac{1}{3}$

.

Change the denominators to be the same:

$= 5\dfrac{1 \times 3}{8 \times 3} - 2 \dfrac{1 \times 8}{3 \times 8}$

$= 5\dfrac{3}{24} - 2 \dfrac{8}{24}$

.

Regroup 1 whole into numerator for the the first term:

.$= 4\dfrac{27}{24} - 2 \dfrac{8}{24}$

.

Minus:

$= 2\dfrac{19}{24}$

.

Answer: 2 19/24