Question

ian measures the mass of his cat and his kittens. the mass of the kitten is 6 and 1/5 lb. the kitten is 3 and 7/8 lb lighter than the cat. what is the total mass of cat and the kitten?​

Answer 1

The kitten weighs 6 and 1/5 lb
The cat is 3 and 7/8 lb heavier than the kitten.
You have to add the kitten’s mass to 3 and 7/8 lb to get the cat’s mass.

So: 3 and 7/8 + 6 and 1/5
= 31/8 + 31/5
= 155/40 + 248/40 (turn them into like fractions)
= 403/40
= 10 and 4/3 lb

Total mass (cat and kitten combined)
= 10 and 4/3 + 6 and 1/5
= 403/40 + 248/40 (again, like fractions)
= 651/40
= 16 and 11/40 lb