Respuesta :

Answer:

a/..the first is 3/8

b/ 84/280

tonb

Answer:

a) 3/8

b) 3/10

Step-by-step explanation:

multiply the numerators and the denominators and then simplify.

a) is just 3*1 divided by 4*2, no simplification possible

b) is 4*21 divided by 7*40 is 84/280 and simplifies to 3/10 (divide by 28)