2:20
60 minutes subtracted from 4 p.m. is 3 p.m. Since it was 100 minutes, there are 40 minutes to take away from 3 p.m.
Turn both into improper fractions- there easier to work with that way
3 15/16 — 63/16
2 1/4 — 9/4
Then, set it up- you multiply by the reciprocal
63 Divided by 9
__. __
16. 4
Multiply by reciprocal (flipped-second fraction)
63. x. 4
16 9
Cross product- check to see if diagonally the numbers have similar factors- 63 and 9 have 9 in common, 16 and 4 have 4 in common
7. 1
4. 1
1 3/4
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It would take Derek 9 minutes to read this article.