Question

A recipe need 4 1/2 cups of sugar. Sona has 21/8 cups of sugar. How much more sugar does Sona need

Answer 1

Step-by-step explanation:

4 ½ means 9 / 2

sona has 21 / 8

so...

21 / 8 + x = 9 / 2

x = 9 / 2 - 21 / 8

x = { 4 × (9) - 1 × (21) } / 8

x = { 36 - 21 } / 8

x = 55 / 8

x = 6 ⅞ cups