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28 votes
28 votes
Multiply five and four-sevenths negative two and two-fifths .

A negative ten and eight thirty-fifths
B ten and eight thirty-fifths
C negative thirteen and thirteen thirty-fifths
D thirteen and thirteen thirty-fifths s

User Paul Tiarks
by
2.9k points

2 Answers

17 votes
17 votes

Answer:

The answer is C.

negative 13 and 13 over 35

Eliminating a negative and changing our operation.

=5 4/7 − 2 2/5

Rewriting our equation with parts separated

=5 + 4/7 − 2 − 2/5

Solving the whole number parts

5−2=3

Solving the fraction parts

4/7 − 2/5 = ?

Find the LCD of 4/7 and 2/5 and rewrite to solve with the equivalent fractions.

LCD = 35

20/35 − 14/35 = 6/35

Combining the whole and fraction parts

3 + 6/35 = 36/35

Solution by Formulas

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

39/7 + −12/5

Applying the fractions formula for addition,

=(39×5)+(−12×7)/7×5

=195 + −84/35

=111/35

=36/35

User Biba
by
3.4k points
13 votes
13 votes

Answer:

C!!!!

Explanation:

i just worked out the equation by turning them into proper fractions and multiplying! hope this helped, have a nice day <3

User Lukaspp
by
2.9k points