Q2. Find the area of quadrilateral ABCD shown in the figure below. D - 5 cm C + cm - B 10 cm 7
Answers
Answer:
457
Step-by-step explanation:
Given :
3/7 + 6/2
4/5 + 6/5
9/9 + 8/6
10/15 + 6/8
16/3 + 7/8
13/9 + 14/6
17/3 + 12/9
25/2 + 9/6
15/5 + 7/9
9/10 + 15/6
To :
add the following fractions by LCM method.
Solution :
➝ 3/7 + 6/2
LCM of 7 and 2 = 14
→ 3 × 2/7 × 2 + 6 × 7/2 × 7
→ 6/14 + 42/14
→ 6 + 42/14
→ 48/14
→ 24/7
➝ 4/5 + 6/5
Since, the denominators are the same, we can add without using LCM method.
→ 4/5 + 6/5
→ 4 + 6/5
→ 10/5
→ 2
➝ 9/9 + 8/6
LCM of 9 and 6 = 18
→ 9 × 2/9 × 2 + 6 × 9/2 × 9
→ 18/18 + 54/18
→ 18 + 54/18
→ 72/18
→ 32/9
➝ 10/15 + 6/8
LCM of 15 and 8 = 120
→ 10 × 8/15 × 8 + 6 × 15/8 × 15
→ 80/120 + 90/120
→ 80 + 90/120
→ 170/120
→ 17/2
➝ 16/3 + 7/8
LCM of 3 land 8 = 24
→ 16 × 6/3 × 6 + 6 × 3/8 × 3
→ 96/24 + 18/24
→ 96 + 18/24
→ 114/24
→ 57/12
➝ 13/9 + 14/6
LCM of 9 and 6 = 18
→ 13 × 2/9 × 2 + 14 × 3/6 × 3
→ 26/18 + 42/18
→ 26 + 42/18
→ 68/18
→ 34/9
➝ 17/3 + 12/9
LCM of 3 and 9 = 9
→ 17 × 3/3 × 3 + 12 × 1/9 × 1
→ 51/9 + 12/9
→ 51 + 12/9
→ 72/9
→ 8
➝ 25/2 + 9/6
LCM of 2 and 6 = 6
→ 25 × 3/2 × 3 + 9 × 1/6 × 1
→ 75/6 + 9/6
→ 75 + 9/6
→ 84/6
→ 14
➝ 15/5 + 7/9