Question 1:
Meat is 0.35 of a pound. The value '0.35' has two decimal places and this means the value is of hundredth
0.35 = 35/100
Divide both the numerator and denominator of the fraction by a common factor to simplify it

Vegetables = 0.15 of a pound = 15/100

Secret sauce and bread each 0.05 of a pound

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Question 2:
Meat - Vegetable = 0.35 - 0.15 = 0.20

The meat is 1/5 of a pound more than the vegetables
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Question 3:
Total weight = 0.35+0.15+0.05+0.05 = 0.60
Total weight =

Total weight of the sandwich is 3/5 of a pound