fraction problem solving?
(b) Jay found 1/3 of a sheet cake in the kitchen. He ate 1/2 of it.What fractionof the whole cake did he eat?
(c) A certain math textbook is 3/4 of an inch thick.How many of these books will fit on a shelf that is 3 feet wide?
Favorite Answer
b. 1/2 x 1/3 = 1/6 (multiply numerators and multiply denominators)
c. 3 ft. = 36 in.
36 xdivided by 3/4 = 36 x 4/3
36 x 4/3 = 144/3 (reduced = 48)
W = 7/10 x L
and,
L = 5
so,
W = 7/10 x 5
W = 7/2 inches
b.
Cake eaten = 1/3 * 1/2 = 1/6
Fraction of the whole cake = 1-1/3-1/6 = 1/2.
So he ate half of the cake!
c.
First you need to know that there are 12 inches in a foot.
Now,
3 feet = 3 x 12 = 36 inches
How many 3/4inch can fit = 36/ (3/4) = 48 books
Hpe this helps!
b) 1/3 * 1/2 = 1/6
c) 3feet = 36inches, so 36 / (3/4) = 36 * 4/3 = 144/3 = 48 books
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