Question

№1А) 5 целых 1/13 - 3 целых 6/13 = ............Б) 7 целых 2/15 - (4целых -3 целых 7/15) + 2целых 12/15 = ...........№2Реши уравнение: 7 - (х + 1 целых 3/5) = 2 целых 4/5._____________________________"/" Дробная черта, если надо разделить пишите: ":"

Answer 1

№1.

а)5 целых 1/13-3 целых 6/13=1 целая 8/13

б)7 целых 2/15-(4 целых-3 целых 7/15)+2 целых 12/15=7 целых 2/15-8/15+2 целых 12/15=

=6 целых 9/15+2 целых 12/15=8 целых 21/15=9 целых 6/15=9 целых 2/5.

№2.

7-(х+1 целых 3/5)=2 целых 4/5

х+1 целых 3/5=7-2 целых 4/5

х+1 целых 3/5=4 целых 1/5

х=4 целых 1/5-1 целую 3/5

х=2 целых 3/5.

Answer 2

№1А) To add 5 whole and 1/13 to -3 whole and 6/13, we can first add the whole numbers together and then add the fractions separately.

First, let's add the whole numbers: 5 + (-3) = 2.

Now let's add the fractions. The fractions have the same denominator of 13, so we can add the numerators directly: 1 + 6 = 7.

Putting it all together, 5 whole and 1/13 + -3 whole and 6/13 equals 2 whole and 7/13.

Therefore, the answer to №1А is 2 whole and 7/13.

№1Б) To solve 7 whole and 2/15 minus (4 whole minus 3 whole and 7/15) plus 2 whole and 12/15, we can simplify the expression step by step.

First, let's simplify the parentheses: 4 whole minus 3 whole and 7/15 equals 1 whole and 8/15.

Now, let's calculate the addition and subtraction from left to right: 7 whole and 2/15 minus 1 whole and 8/15 equals 5 whole and 10/15. Then, adding 2 whole and 12/15 to this result gives us 7 whole and 10/15.

However, we can simplify 7 whole and 10/15 further. The fraction 10/15 can be reduced by dividing both the numerator and denominator by their greatest common divisor, which is 5. This gives us 2/3.

Therefore, the answer to №1Б is 7 whole and 2/3.

№2) To solve the equation 7 - (x + 1 whole and 3/5) = 2 whole and 4/5, we can simplify and isolate the variable x.

First, let's simplify the expression inside the parentheses: x + 1 whole and 3/5.

To subtract 1 whole and 3/5 from 7, we need to find a common denominator. The common denominator between 5 and 1 is 5. So, we have 7 - (5/5 + 3/5) = 7 - 8/5.

Now, let's subtract 8/5 from 7: 7 - 8/5 = 35/5 - 8/5 = 27/5.

Therefore, the equation becomes x + 27/5 = 2 whole and 4/5.

To isolate the variable x, we can subtract 27/5 from both sides of the equation: x + 27/5 - 27/5 = 2 whole and 4/5 - 27/5.

This simplifies to x = 2 whole and 4/5 - 27/5 = (10/5 + 4/5) - 27/5 = 14/5 - 27/5 = -13/5.

Therefore, the solution to the equation is x = -13/5.