Question

Решите пожалуйста )выполните сложения )))))1)17+(-5)=2)-21+19=3)-8+(-43)=4).-15+(-18)=5)-0,5+6=6)-2,4+(-3,2)=7)6,1+(-8,3)=8)-3,84+4.16=9)-2/9+5/9=(это как дробь )10)-4/7+2/7(дробь)11)5/8+(-7/12)=(дробь)12)-1+3/5=(дробь)13)-2+(1,3/4)(дробь с целой )14)3+(-1,2/7)(дробь с целой )15)2,2/3+(-1,5/6)(дробь с целой )16)-5,1/3 +4,5

Answer 1

17 + (-5)= 17-5=12
-21+ 19=19-21=-2
-8+(-43)=-(8+43)=-51
-15+(-18)=-(15+18)=-33
-0,5+6=5,5
-2,4+(-3,2)=-5,6
6,1+-(8,3)= -(8,3-6,1)=-2,2
-3,84+4,16=0,32
-2/9+5/9=3/9
-4/7+2/7=-2/7
5/8+(-7/12)=15/24-14/24=1/24
-1+3/5=-5/5+3/5=-2/5
-2+1,3/4=-8/4+ 7/4=-1/4
3+(-1 2/7)=21/7-9/7=12/7=1 5/7
2 2/3 + (-1 5/6)= 8/3-11/6=16/6-11/6=5/6
-5 1/3+4,5=-16/3+9/2=-32/6+27/6=-5/6

Answer 2

1) 17 + (-5) = 12 To add a positive number and a negative number, we can simply subtract the absolute value of the negative number from the positive number. In this case, 17 - 5 = 12.

2) -21 + 19 = -2 When adding two negative numbers, we can add their absolute values and then assign the negative sign to the result. In this case, |-21| + |-19| = 21 + 19 = 40. Since both numbers are negative, the result is also negative, so -2.

3) -8 + (-43) = -51 When adding two negative numbers, we can add their absolute values and then assign the negative sign to the result. In this case, |-8| + |-43| = 8 + 43 = 51. Since both numbers are negative, the result is also negative, so -51.

4) -15 + (-18) = -33 When adding two negative numbers, we can add their absolute values and then assign the negative sign to the result. In this case, |-15| + |-18| = 15 + 18 = 33. Since both numbers are negative, the result is also negative, so -33.

5) -0.5 + 6 = 5.5 To add a positive number and a negative number, we can simply subtract the absolute value of the negative number from the positive number. In this case, 6 - 0.5 = 5.5.

6) -2.4 + (-3.2) = -5.6 When adding two negative numbers, we can add their absolute values and then assign the negative sign to the result. In this case, |-2.4| + |-3.2| = 2.4 + 3.2 = 5.6. Since both numbers are negative, the result is also negative, so -5.6.

7) 6.1 + (-8.3) = -2.2 When adding a positive number and a negative number, we can subtract the absolute value of the negative number from the positive number. In this case, 6.1 - 8.3 = -2.2.

8) -3.84 + 4.16 = 0.32 To add two decimal numbers, we can simply add the numbers together. In this case, -3.84 + 4.16 = 0.32.

9) -2/9 + 5/9 = 3/9 = 1/3 When adding fractions with the same denominator, we can add the numerators and keep the denominator the same. In this case, -2/9 + 5/9 = (-2 + 5)/9 = 3/9. Since 3 and 9 have a common factor of 3, we can simplify the fraction to 1/3.

10) -4/7 + 2/7 = -2/7 When adding fractions with the same denominator, we can add the numerators and keep the denominator the same. In this case, -4/7 + 2/7 = (-4 + 2)/7 = -2/7.

11) 5/8 + (-7/12) = (15/24) + (-14/24) = 1/24 When adding fractions with the same denominator, we can add the numerators and keep the denominator the same. In this case, 5/8 + (-7/12) = (5 - 7)/8 = -2/8 = -1/4. However, -1/4 can be simplified further by dividing both the numerator and denominator by their greatest common divisor, which is 4. So, -1/4 can be simplified to 1/24.

12) -1 + 3/5 = -5/5 + 3/5 = -2/5 To add a whole number and a fraction, we can convert the whole number to an equivalent fraction with the same denominator as the fraction and then add the numerators. In this case, -1 can be written as -5/5, and then we can add -5/5 + 3/5 = -2/5.

13) -2 + (1 3/4) = -2 + (7/4) = -8/4 + 7/4 = -1/4 To add a whole number and a mixed number, we can convert the whole number to an equivalent fraction with the same denominator as the fraction part of the mixed number and then add the numerators. In this case, -2 can be written as -8/4, and then we can add -8/4 + 7/4 = -1/4.

14) 3 + (-1 2/7) = 3 + (-9/7) = 21/7 + (-9/7) = 12/7 To add a whole number and a mixed number, we can convert the whole number to an equivalent fraction with the same denominator as the fraction part of the mixed number and then add the numerators. In this case, -1 can be written as -9/7, and then we can add 21/7 + (-9/7) = 12/7.

15) (2 2/3) + (-1 5/6) = (8/3) + (-11/6) = 16/6 + (-11/6) = 5/6 To add two mixed numbers, we can convert both numbers to improper fractions and then add the numerators. In this case, 2 2/3 can be written as 8/3, and -1 5/6 can be written as -11/6. Then we can add 8/3 + (-11/6) = 5/6.

16) (-5 1/3) + 4 1/2 = (-16/3) + (9/2) = (-32/6) + (27/6) = -5/6 To add two mixed numbers, we can convert both numbers to improper fractions and then add the numerators. In this case, -5 1/3 can be written as -16/3, and 4 1/2 can be written as 9/2. Then we can add -16/3 + 9/2 = -5/6.