17 июн. 2021 г. — 4/7 would become 12/21 as you would multiply the top and bottom by 3. Finally simply calculate 15/21 - 12/21. The denominators stay the same (21) ...
4
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15 июн. 2021 г. — Two negatives make a positive. Multiplying a negative number by another negative number, therefore, equals a positive number.
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17 июн. 2021 г. — Now we can't just make it 4 / 15 + 3 / 15 because that is changing the value of the second fraction. 4 / 15 + 3 / 5 = 4 / 15 + ?/ 15 = ?/ 15 . We ask ...
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17 июн. 2021 г. — To calculate, take the numerators away from each other (15-12 = 3). The answer is 3/21 . This can be simplified by dividing both the numerator ...
5(-2)
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5 июн. 2021 г. — If we remove the zeroes we must answer 12/2. This is much easier and gives 6. Because we removed zeroes from both the 120 and the 20 we have our ...
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17 июн. 2021 г. — 4/15 and 3/5 are both fractions - a fraction is less than a whole (like a piece of cake rather than the whole cake!!)
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17 июн. 2021 г. — 4 / 15 and 3 / 5 are both fractions - So 1/ 5 + 2/ 5 = 3 / 5 . 4 / 15 + 3 / 5 = 4 / 15 + 9/ 15 = 13/ 15
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5 июн. 2021 г. — 120 is dividend and 10 is divisor. We can easily divide the number 120 by using number 10 . Cancel the zero from 120 .Then we get 12.
7(-1)
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17 июн. 2021 г. — Four sevenths and one sevenths add to five sevenths, while one whole and three wholes add up to four wholes. That leads to five wholes and five sevenths.
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17 июн. 2021 г. — Convert the fractions into improper fraction so 1 4 / 7 ----> 11/ 7 and 3 1 / 7 ----> 22/ 7 . Final step would be to add the numerators together ...