Question

6)
a) 1/12+5/12+7/12
b) 1 1/2 (this is mixed fraction not 11/2)+2 1/3 (this is mixed fraction)+6/15
c) 2 1/3 (mixed fraction)+ 3 1/2 (mixed fraction)-1 1/4 (mixed fraction)

7) Simplify
a) 3/4 of 8/6
b) 5 2/7 (mixed fraction) of 3/4
c) 2/7 divided by 1/7
d) 4 5/8 (mixed fraction) divided by 2 5/6 (mixed fraction)

8) Sunita bought a 10 kg box of grapes from the market. She gave 3 1/2 (mixed fraction) to Reema and 2 1/4 (mixed fraction). How many kilograms of grapes does she have?

9) Anita jogs 1 1/2 km (mixed fraction) in 1 hour. How many kilometers can she cover in 2 1/2 (mixed fraction)?


Only those who know the answer post. I don’t want any unnecessary things such as “I don’t know” or anything like that. Or else you will be reported. Only those who know answer.

Answer 1

Answer:

6

a) all the denominators are same , so we just have to add the numerators

1/12 + 5/12 + 7/12

6/12 + 7/ 12

13/12 or $1\frac{1}{12}$ (mixed fraction)

b) 1 1/2 (this is mixed fraction not 11/2)+2 1/3 (this is mixed fraction)+6/15

first we have to convert all the mixed fractions into improper fractions

3/2 + 7/3 + 6/15

now we have to make the denominators same by lcm

lcm of denominators = 30

3 x 15/2 x 15  +  7 x 10/3 x 10  +  6 x 2/15 x 2

45/30 + 70/30 + 12/30

= 127/30 or $4\frac{7}{30}$

c) first we have to convert mixed fraction to improper fraction

7/3 + 7/2 + (- 5/4)

now we have to make all the denominators same by using lcm

lcm of 3,2 and 4 = 12

(7 x 4/3 x 4) + (7 x 6/2 x 6) + (-5 x 3/4 x 3)

28/12 + 42/12 + (-15/12)

70/12 + (-15/12)

now we have to substract 70 and 15 because one number is positive and other is negative

55/12 or $4\frac{7}{12}$

7)

a) 3/4 of 8/6 means 3/4 x 8/6

3/4 x 8/6

1/4 x 8/2 (cancel 3 and 6 by 3)

1/1 x 2/2 (cancel 4 and 8 by 4)

2/2 or 1

b) 5 2/7 of 3/4

 = 35/7 x 3/4 (mixed fraction)

 = 5/1 x 3/4 (cancel 35 and 7 by 7)

 = 15/4 or $3\frac{3}{4}$

c) 2/7 ÷ 1/7

  = 2/7 x 7/1

  = 2/1 x 1/1 (cancel 7 and 7 by 7)

  = 2/1 or 2

d) i don't know

8) i don't know

9) speed

=distance/time

=5.5/1 km/hr

distance=speed×time

= 5.5×21/2

= 2.25×21

= 47. 25 km

Answer 2

Step-by-step explanation:

here is your answer stumble guys