Question

HELP PLS with these questions

11.1/4 x 5=??
12.1 1/2 x 2 1/5=??
13.2/9 ➗ 1/3=??
14.5 ➗ 2/3=??

Answer 1

1/4 x 5 = 5/4 = 1 1/4

1 1/2 x 2 1/5 = 33/10 = 3 3/10

2/9 ÷ 1/3 = 2/3

5 ÷ 2/3 = 15/2 = 7 1/2

Explanation:

1/4 x 5

1/4 x 5/1 = 5/4

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1 1/2 x 2 1/5

1 1/2 = 3/2

2 1/5 = 11/5

3/2 x 11/5 =33/10 = 3 3/10

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2/9 ÷ 1/3

KCF:

2/9 x 3/1 = 2/3 x 1/1 = 2/3

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5 ÷ 2/3

5/1 ÷ 2/3

KCF:

5/1 x 3/2 = 15/2 = 7 1/2

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KCF ( keep change flip ): This is a way of solving division with fractions by keeping the first fraction the same, changing the division to multiplication, and flipping the other fraction.