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  • 22-08-2019
  • Mathematics
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Find the sum without the use of a number line.
21/38 + (-7/19) note: 21/38 and -7/19 are fractions​

Find the sum without the use of a number line2138 719 note 2138 and 719 are fractions class=

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  • 22-08-2019

Answer:

If you multiply both sides of fraction any number except 0, you end up with the same number. In order to make easy adding fractions first equalise their denominators. 38=2*19. So we need to multiply both sides of (-7/19) fraction by 2. We get (-14/38). As denominators are the same we can "connect" the fractions. (21-14)/38=7/38.

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