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For questions 1- 3 find the exact sum or difference.


question 1. 7/15 + 9/15 + 4/15 =

A7/9
B1 13/15
C2 2/9
D1 1/3


question 2. Gerri spends 1/21 of her money on pencils and 2/21 on paper. what friction of her money does she spend? Give the answer in the simplest form.

A1/7
B3/20
C4/21
D8/7


question 3. 5/7 - (3/14 + 3/12) =

A2/7
B1/21
C1/7
D1 1/7

Verified Answer :

D, Because 7/15 + 9/15 is 16/15 + 4/15 =20/15 which equals 1 5/15 which turns into 1 1/3
A, 1/21 + 2/21 = 3/21 and that equals 1/7

C, 3/14+3/12 turns into 3/14+5/14= 10/14 - 8/14= 2/14=1/7

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