Question

add the following using suitable properties a) (-13/20)+11/14+(-5/7)-7/10 b) 4/5+ - (-8/9) +(-5/15) +1/3​

Answer 1

Answer:

For (a)

(-13/20)+11/14+(-5/7)-7/10

• (-13/20)+11/14-5/7-7/10
• [-91+110-100-98]/140
• [-189+110-100]/140
• [-289+110]/140
• [-179/140]
• so -179/140

For (b)

• 4/5+-(-8/9)+(-5/15)+1/3
• 4/5+8/9-5/15+1/3
• [36+40-15+15]/45
• [76-0]/45
• so 76/45

i hope this will help u!