A farmer is going to plant carrots on 4 3/10 acres, corn on 4 7/30 acres and peppers on 2 7/15 acres. If each acre requires 25 bags of fertilizer, how many bags of fertilizer does the farmer need to plant all the acres?

Question

Mathematics

Paola Ayers

17 February, 06:02

A farmer is going to plant carrots on 4 3/10 acres, corn on 4 7/30 acres and peppers on 2 7/15 acres. If each acre requires 25 bags of fertilizer, how many bags of fertilizer does the farmer need to plant all the acres?

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Answers (1)

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Ayla Chen · Answer 1

To convert mixed fractions to improper fractions:

a b/c = (ac+b) / c so we have:

43/10+127/30+37/15 now making all terms have a common denominator of 30

(43/10) (3/3) + (127/30) (1/1) + (37/15) (2/2)

129/30+127/30+74/30

(129+127+74) / 30

330/30

11 acres

Now

11a (25b/a) = 275 bags of fertilizer.