Today, Jim used 1/5 of his study time for English work and 3/8 of his study time for Science work. He had no Math work today because his teacher is so nice. What fraction of his study time did he spend on History work?

Okay the question is a little unclear, but if he's only doing english, science and history the answer should be 17/40

Step-by-step explanation:

1/5=8/40

3/8=15/40

8/40+15/40=23/40

40/40-23/40=17/40

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.