Fractions
Word Problems
Prime Numbers, Factors & Multiples
100
What is the product of 3/4 x 1/2 ?
3/8
100
Namwan bakes 20 chocolate cookies and 25 coconut cookies. What fraction of the cookies are coconut cookies?
5/11 of the cookies are coconut.
100
List all the prime numbers UNDER 20.
2, 3, 5, 7, 11, 13, 17, 19
200
What is the product of 3/2 x 7/3 ?
7/2 = 3 and 1/2
200
Praew bought a motorbike at a 5% discount. This discount was 18,350 baht. How much did she pay for the motorbike?
Praew paid 385,350 baht for the motorbike.
200
What are the prime factors of 115?
23, 5
300
5 children share 7 cakes equally. What fraction of the cakes will each child get?
Each child will get 1 and 2/5 of the cakes.
300
Teacher Joanna takes 1/3 minutes to write the word 'HIPPOPOTAMUS'. How many times can teacher Joanna write this word in 6 minutes?
Teacher Joanna can write HIPPOPOTAMUS 18 times in 6 minutes
300
Find the G.C.F (Greatest Common Factor) of 27 and 36
G.C.F. (27, 36) = 9
400
How many 1/9 are there in 2/3 ?
There are six 1/9's in 2/3.
400
Teacher Tieng bought a rice cooker. She sold it for 2,210 baht. This was 30% more than what she paid. How much did she buy the rice cooker for?
Teacher Tieng bought the rice cooker for 1700 baht.
400
What is the lowest common multiple of 14 and 15 ?
L.C.M. (14, 15) = 210
500
Mon has 7 tins of cat food. His cat eats 1/4 of a tin of cat food every day. How many days will Mon's cat take to eat all 7 tins of food?
It will take the cat 28 days.
500
Tee2 had 1,500 pencils. 45% of the pencils were blue, 20% of the remainder were red and the rest were green. How many pencils were green?
660 pencils were green.
500
Use the number-pair clues to find the number pair which fits ALL clues. CLUE 1 - Both numbers are composite. CLUE 2 - Its G.C.F is 1. CLUE 3 - Its L.C.M. is greater than 70. Is it: 9, 32 4, 15 7, 12 16, 18
9, 32
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