Respuesta :

Answer:

22/35

Step-by-step explanation:

1/5 + 3/7

5 times tables: 5, 10, 15, 20, 25, 30,35,40, 45, 50

7 times tables: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

1 x 7 = 7

3 x 5 = 15

7/35 + 15/35 = 22/35

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msmerida

Answer:

22/35

Step-by-step explanation:

  • to solve it, the denominator has to be same

[tex]\frac{1}{5} +\frac{3}{7} \\[/tex]

  • we need the least common denominator between 5 and 7. that's mean 35

multiplication table of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45,..

multiplication table of 7: 7, 14, 21, 28, 35, 42, 49,..

  • multiply the numerator by the number that we converted the denominator to 35

[tex]\frac{1}{5} * \frac{7}{7} = \frac{7}{35} \\\frac{3}{7} *\frac{5}{5} = \frac{15}{35}[/tex]

  • in addition and subtraction of fractions, we don't do anything with denominator and only add or subtract the numerators together

[tex]\frac{7}{35} +\frac{15}{35} =\frac{22}{35}[/tex]

and in the end.. the answer is [tex]\frac{22}{35}[/tex]

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