Name: ____________________
Date: _______________________
Quiz ( LCM, adding and subtracting fractions)
All work must be shown.
1.
Markers are sold in packs of 8 and crayons are sold in packs of 16. If there are 32 students in
Mrs. Readings art class, what is the least number of packs needed so that each student can
have one marker and one crayon and none will be left over? (Two division problems)
Number of packs of markers is __________________
Number of packs of crayons is __________________
2. Cans of soup are sold in packs of 24, and packets of crackers are sold in groups of 4. If there
are 120 people to be fed and each will get one can of soup and one packet of crackers, what is
the least number of packs needed to feed everyone such that no crackers or soup are left over.
Number of packs of soup is _______________.
Number of packs of crackers is _______________.
LCM problems:
3. Find the least common multiple of 4 and 6.
4. Find the least common multiple of 2 and 15
5. Find the least common multiple of 3, 5, and 9.
6. Find the least common multiple of 4, 6, and 10.
Name: ____________________
Date: _______________________
Quiz ( LCM, adding and subtracting fractions)
Adding and subtracting fractions with unlike denominators:
7.
9.
=
8.
=
10.
=
=
11. Lex needs to to add cup of sugar for the recipe she is making. She added
already. How much more sugar does she need to add?
cup
Regrouping when necessary to subtract mixed numbers.
12.
14.
=
13.
=
15.
15. Malik buys
pounds of bananas. He uses
pounds of bananas making banana
bread. How many pounds of bananas does he have left over.