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For question 1-2 estimate the sum or difference. use the bench marks 0 1/2 and 1

1. 23/40 - 11/30

2. Simone measures the width of one cardboard strip as 1/2 yd. A second cardboard strip measures 5/6 yd in width estimate the combined width of the cardboard strips.

for questions 3-4 find the exact sum or difference

3. 7/15 + 9/15 + 4/15

4. Gerry spends 1/21 of her money on pencils and 2/21 on paper what fraction of money does she spend? give the answer in simplest form.

Respuesta :

1)5/24
2)1 and 1/3 im not sure 
3)1 and 1/3
4)1/7

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