Question

a ribbon 12/15 m is cut into two parts. If one part is 3/5 m long, then what is the length of other part?

Answer 1

Answer:

12/15(m) - 3/5(m)

find the common denominator = 15

when multiplying the denominator(s), multiply the numerator(s) by the same value.

12/15(m) - 9/15(m) = 3/15(m), simplify to get 1/5(m), divide both the numerator and denominator by 3