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Step2247 [10]
3 years ago
14

A. 5/7 × 9/10B. 1 3/5 - 5/6answer these please! :o I need help

History
1 answer:
KatRina [158]3 years ago
4 0
A. 45/70

5/7 × 9/10

Multiply the numerator with the other numerator, and denominator with the other denominator.

5 × 9
7 × 10

It becomes 45/70.

B. 23/30

1 3/5 - 5/6

In adding/subtracting fractions, their denominators must be equal. Make them so by finding the LCM of both denominators.

5 and 6 would have an LCM of 30. Make it so the numerator and new denominator still have equal proportion as the first fraction you started with.

1 3/5 becomes 1 3(6) / 5(6), or 1 18/30
5/6 becomes 5(5) / 6(5), or 25/30

You can now subtract both fractions.

1 18/30 - 25/30

The minuend (if the presence of 1 whole is ignored) is smaller than the subtrahend. To fix this, borrow the 1 whole from 1 18/30. 1 in this fraction would be 30, so add 30 to the fraction and remove the 1 in the fraction.

48/30 - 25/30

Subtract.

=23/30.


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