Question

1. If a = -8, b = -7, c = 6, verify that (a+b) + c = a+ (b+c)

2. Find the product of the fractions:

(i) 4/7 × 14/25

(ii) 7¹/₂ × 2⁴/₁₅

(iii) 3⁶/₇ × 4²/₃

(iv) 6¹¹/₁₄ × 3¹/₂

3. Find the product of the fractions:

(i) 4/7 × 14/25

(ii) 7¹/₂ × 2⁴/₁₅

(iii) 3⁶/₇ × 4²/₃

(iv) 6¹¹/₁₄ × 3¹/₂

4. Simplify the fractions:

(i) 12/25 × 15/28 × 35/36

(ii) 10/27 × 39/56 × 28/65

5. If a=-9 and b=-6, show that (a-b) ≠ (b-a)

6. Which is greater?

1/2 of 6/7 or 2/3 of 3/7​

Answer 1

Step-by-step explanation:

1)

=(a+b)+c=a+(b+c)

=(-8-7)+6=-8+(-7+6)

=-15+6=-8-1

=-9=-9

proved