Answer:
1. 20/3
2.) 9/14
Step-by-step explanation:
1.)
8 7/9 = 8 · 9 + 7/9 = 72 + 7/9 = 79/9
2 1/9 = 2 · 9 + 1/9 = 18 + 1/9 = 19/9
79/9 - 19/9 = 79 - 19/9 = 60/9 = 3 · 20/3 · 3 = 20/3
2.)
3 1/7= 3 · 7 + 1/7 = 21 + 1/7 = 22/7
2 1/2 = 2 · 2 + 1/2 = 4 + 1/2 = 5/2
22/7 - 5/2 = 22 · 2/7 · 2 - 5 · 7/2 · 7 = 44/14 - 35/14 = 44 - 35/14 = 9/14
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Answers & Comments
Answer:
1. 20/3
2.) 9/14
Step-by-step explanation:
1.)
8 7/9 = 8 · 9 + 7/9 = 72 + 7/9 = 79/9
2 1/9 = 2 · 9 + 1/9 = 18 + 1/9 = 19/9
79/9 - 19/9 = 79 - 19/9 = 60/9 = 3 · 20/3 · 3 = 20/3
2.)
3 1/7= 3 · 7 + 1/7 = 21 + 1/7 = 22/7
2 1/2 = 2 · 2 + 1/2 = 4 + 1/2 = 5/2
22/7 - 5/2 = 22 · 2/7 · 2 - 5 · 7/2 · 7 = 44/14 - 35/14 = 44 - 35/14 = 9/14