Question

answer the question ​

Answer 1

1.) What should be added to -5/4 to -1

Solution:

Let the required number be x

According to the question

$\frac{ - 5}{4} + x = - 1 \\ x = - 1 + \frac{5}{4} \\ x = \frac{ - 4 + 5}{4} \\ x = \frac{1}{4}$

2.) Which of the following is the product of (-7/8) and 4/21

(a)-1/6, (b)12, (c)-63/16, (d)-16/147

Solution:

$\frac{ - 7}{8} \times \frac{4}{21} \\ = \frac{ - 1}{6}$

Therefore option(a) -1/6 is correct.

Answer 2

Answer:

1. Let the no. be X.

= -5/4 + X = -1

= X = -1 + -5/4

= X = -4+5/4

= X = 1/4

Hence, the number is 1/4.

b) 1/4 ✓

2. (-7/8) × 4/21

solve - (-7/8) × 4/21

-1/6

a) -1/6 ✓